21568680

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{317}}^1$

素因数の和:350

約数の個数: 192

約数和(自身を含む): 83341440

約数和(自身を除く): 61772760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 317, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 634, 648, 756, 810, 840, 945, 951, 972, 1080, 1134, 1215, 1260, 1268, 1512, 1585, 1620, 1701, 1890, 1902, 1944, 2219, 2268, 2430, 2520, 2536, 2835, 2853, 3170, 3240, 3402, 3780, 3804, 4438, 4536, 4755, 4860, 5670, 5706, 6340, 6657, 6804, 7560, 7608, 8505, 8559, 8876, 9510, 9720, 11095, 11340, 11412, 12680, 13314, 13608, 14265, 17010, 17118, 17752, 19020, 19971, 22190, 22680, 22824, 25677, 26628, 28530, 33285, 34020, 34236, 38040, 39942, 42795, 44380, 51354, 53256, 57060, 59913, 66570, 68040, 68472, 77031, 79884, 85590, 88760, 99855, 102708, 114120, 119826, 128385, 133140, 154062, 159768, 171180, 179739, 199710, 205416, 239652, 256770, 266280, 299565, 308124, 342360, 359478, 385155, 399420, 479304, 513540, 539217, 599130, 616248, 718956, 770310, 798840, 898695, 1027080, 1078434, 1198260, 1437912, 1540620, 1797390, 2156868, 2396520, 2696085, 3081240, 3594780, 4313736, 5392170, 7189560, 10784340, 21568680]

約数ペア:

[(1, 21568680), (2, 10784340), (3, 7189560), (4, 5392170), (5, 4313736), (6, 3594780), (7, 3081240), (8, 2696085), (9, 2396520), (10, 2156868), (12, 1797390), (14, 1540620), (15, 1437912), (18, 1198260), (20, 1078434), (21, 1027080), (24, 898695), (27, 798840), (28, 770310), (30, 718956), (35, 616248), (36, 599130), (40, 539217), (42, 513540), (45, 479304), (54, 399420), (56, 385155), (60, 359478), (63, 342360), (70, 308124), (72, 299565), (81, 266280), (84, 256770), (90, 239652), (105, 205416), (108, 199710), (120, 179739), (126, 171180), (135, 159768), (140, 154062), (162, 133140), (168, 128385), (180, 119826), (189, 114120), (210, 102708), (216, 99855), (243, 88760), (252, 85590), (270, 79884), (280, 77031), (315, 68472), (317, 68040), (324, 66570), (360, 59913), (378, 57060), (405, 53256), (420, 51354), (486, 44380), (504, 42795), (540, 39942), (567, 38040), (630, 34236), (634, 34020), (648, 33285), (756, 28530), (810, 26628), (840, 25677), (945, 22824), (951, 22680), (972, 22190), (1080, 19971), (1134, 19020), (1215, 17752), (1260, 17118), (1268, 17010), (1512, 14265), (1585, 13608), (1620, 13314), (1701, 12680), (1890, 11412), (1902, 11340), (1944, 11095), (2219, 9720), (2268, 9510), (2430, 8876), (2520, 8559), (2536, 8505), (2835, 7608), (2853, 7560), (3170, 6804), (3240, 6657), (3402, 6340), (3780, 5706), (3804, 5670), (4438, 4860), (4536, 4755)]