20973960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 288

約数和(自身を含む): 84029400

約数和(自身を除く): 63055440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 41, 42, 45, 49, 56, 58, 60, 63, 70, 72, 82, 84, 87, 90, 98, 105, 116, 120, 123, 126, 140, 145, 147, 164, 168, 174, 180, 196, 203, 205, 210, 232, 245, 246, 252, 261, 280, 287, 290, 294, 315, 328, 348, 360, 369, 392, 406, 410, 420, 435, 441, 490, 492, 504, 522, 574, 580, 588, 609, 615, 630, 696, 735, 738, 812, 820, 840, 861, 870, 882, 980, 984, 1015, 1044, 1148, 1160, 1176, 1189, 1218, 1230, 1260, 1305, 1421, 1435, 1470, 1476, 1624, 1640, 1722, 1740, 1764, 1827, 1845, 1960, 2009, 2030, 2088, 2205, 2296, 2378, 2436, 2460, 2520, 2583, 2610, 2842, 2870, 2940, 2952, 3045, 3444, 3480, 3528, 3567, 3654, 3690, 4018, 4060, 4263, 4305, 4410, 4756, 4872, 4920, 5166, 5220, 5684, 5740, 5880, 5945, 6027, 6090, 6888, 7105, 7134, 7308, 7380, 8036, 8120, 8323, 8526, 8610, 8820, 9135, 9512, 10045, 10332, 10440, 10701, 11368, 11480, 11890, 12054, 12180, 12789, 12915, 14210, 14268, 14616, 14760, 16072, 16646, 17052, 17220, 17640, 17835, 18081, 18270, 20090, 20664, 21315, 21402, 23780, 24108, 24360, 24969, 25578, 25830, 28420, 28536, 30135, 33292, 34104, 34440, 35670, 36162, 36540, 40180, 41615, 42630, 42804, 47560, 48216, 49938, 51156, 51660, 53505, 56840, 58261, 60270, 63945, 66584, 71340, 72324, 73080, 74907, 80360, 83230, 85260, 85608, 90405, 99876, 102312, 103320, 107010, 116522, 120540, 124845, 127890, 142680, 144648, 149814, 166460, 170520, 174783, 180810, 199752, 214020, 233044, 241080, 249690, 255780, 291305, 299628, 332920, 349566, 361620, 374535, 428040, 466088, 499380, 511560, 524349, 582610, 599256, 699132, 723240, 749070, 873915, 998760, 1048698, 1165220, 1398264, 1498140, 1747830, 2097396, 2330440, 2621745, 2996280, 3495660, 4194792, 5243490, 6991320, 10486980, 20973960]

約数ペア:

[(1, 20973960), (2, 10486980), (3, 6991320), (4, 5243490), (5, 4194792), (6, 3495660), (7, 2996280), (8, 2621745), (9, 2330440), (10, 2097396), (12, 1747830), (14, 1498140), (15, 1398264), (18, 1165220), (20, 1048698), (21, 998760), (24, 873915), (28, 749070), (29, 723240), (30, 699132), (35, 599256), (36, 582610), (40, 524349), (41, 511560), (42, 499380), (45, 466088), (49, 428040), (56, 374535), (58, 361620), (60, 349566), (63, 332920), (70, 299628), (72, 291305), (82, 255780), (84, 249690), (87, 241080), (90, 233044), (98, 214020), (105, 199752), (116, 180810), (120, 174783), (123, 170520), (126, 166460), (140, 149814), (145, 144648), (147, 142680), (164, 127890), (168, 124845), (174, 120540), (180, 116522), (196, 107010), (203, 103320), (205, 102312), (210, 99876), (232, 90405), (245, 85608), (246, 85260), (252, 83230), (261, 80360), (280, 74907), (287, 73080), (290, 72324), (294, 71340), (315, 66584), (328, 63945), (348, 60270), (360, 58261), (369, 56840), (392, 53505), (406, 51660), (410, 51156), (420, 49938), (435, 48216), (441, 47560), (490, 42804), (492, 42630), (504, 41615), (522, 40180), (574, 36540), (580, 36162), (588, 35670), (609, 34440), (615, 34104), (630, 33292), (696, 30135), (735, 28536), (738, 28420), (812, 25830), (820, 25578), (840, 24969), (861, 24360), (870, 24108), (882, 23780), (980, 21402), (984, 21315), (1015, 20664), (1044, 20090), (1148, 18270), (1160, 18081), (1176, 17835), (1189, 17640), (1218, 17220), (1230, 17052), (1260, 16646), (1305, 16072), (1421, 14760), (1435, 14616), (1470, 14268), (1476, 14210), (1624, 12915), (1640, 12789), (1722, 12180), (1740, 12054), (1764, 11890), (1827, 11480), (1845, 11368), (1960, 10701), (2009, 10440), (2030, 10332), (2088, 10045), (2205, 9512), (2296, 9135), (2378, 8820), (2436, 8610), (2460, 8526), (2520, 8323), (2583, 8120), (2610, 8036), (2842, 7380), (2870, 7308), (2940, 7134), (2952, 7105), (3045, 6888), (3444, 6090), (3480, 6027), (3528, 5945), (3567, 5880), (3654, 5740), (3690, 5684), (4018, 5220), (4060, 5166), (4263, 4920), (4305, 4872), (4410, 4756)]