81312840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:852

約数の個数: 192

約数和(自身を含む): 309778560

約数和(自身を除く): 228465720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 56, 60, 63, 70, 72, 82, 84, 90, 105, 120, 123, 126, 140, 164, 168, 180, 205, 210, 246, 252, 280, 287, 315, 328, 360, 369, 410, 420, 492, 504, 574, 615, 630, 738, 787, 820, 840, 861, 984, 1148, 1230, 1260, 1435, 1476, 1574, 1640, 1722, 1845, 2296, 2361, 2460, 2520, 2583, 2870, 2952, 3148, 3444, 3690, 3935, 4305, 4722, 4920, 5166, 5509, 5740, 6296, 6888, 7083, 7380, 7870, 8610, 9444, 10332, 11018, 11480, 11805, 12915, 14166, 14760, 15740, 16527, 17220, 18888, 20664, 22036, 23610, 25830, 27545, 28332, 31480, 32267, 33054, 34440, 35415, 44072, 47220, 49581, 51660, 55090, 56664, 64534, 66108, 70830, 82635, 94440, 96801, 99162, 103320, 110180, 129068, 132216, 141660, 161335, 165270, 193602, 198324, 220360, 225869, 247905, 258136, 283320, 290403, 322670, 330540, 387204, 396648, 451738, 484005, 495810, 580806, 645340, 661080, 677607, 774408, 903476, 968010, 991620, 1129345, 1161612, 1290680, 1355214, 1452015, 1806952, 1936020, 1983240, 2032821, 2258690, 2323224, 2710428, 2904030, 3388035, 3872040, 4065642, 4517380, 5420856, 5808060, 6776070, 8131284, 9034760, 10164105, 11616120, 13552140, 16262568, 20328210, 27104280, 40656420, 81312840]

約数ペア:

[(1, 81312840), (2, 40656420), (3, 27104280), (4, 20328210), (5, 16262568), (6, 13552140), (7, 11616120), (8, 10164105), (9, 9034760), (10, 8131284), (12, 6776070), (14, 5808060), (15, 5420856), (18, 4517380), (20, 4065642), (21, 3872040), (24, 3388035), (28, 2904030), (30, 2710428), (35, 2323224), (36, 2258690), (40, 2032821), (41, 1983240), (42, 1936020), (45, 1806952), (56, 1452015), (60, 1355214), (63, 1290680), (70, 1161612), (72, 1129345), (82, 991620), (84, 968010), (90, 903476), (105, 774408), (120, 677607), (123, 661080), (126, 645340), (140, 580806), (164, 495810), (168, 484005), (180, 451738), (205, 396648), (210, 387204), (246, 330540), (252, 322670), (280, 290403), (287, 283320), (315, 258136), (328, 247905), (360, 225869), (369, 220360), (410, 198324), (420, 193602), (492, 165270), (504, 161335), (574, 141660), (615, 132216), (630, 129068), (738, 110180), (787, 103320), (820, 99162), (840, 96801), (861, 94440), (984, 82635), (1148, 70830), (1230, 66108), (1260, 64534), (1435, 56664), (1476, 55090), (1574, 51660), (1640, 49581), (1722, 47220), (1845, 44072), (2296, 35415), (2361, 34440), (2460, 33054), (2520, 32267), (2583, 31480), (2870, 28332), (2952, 27545), (3148, 25830), (3444, 23610), (3690, 22036), (3935, 20664), (4305, 18888), (4722, 17220), (4920, 16527), (5166, 15740), (5509, 14760), (5740, 14166), (6296, 12915), (6888, 11805), (7083, 11480), (7380, 11018), (7870, 10332), (8610, 9444)]