289303980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{839}}^1$

素因数の和:1679

約数の個数: 96

約数和(自身を含む): 928005120

約数和(自身を除く): 638701140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 821, 839, 1642, 1678, 2463, 2517, 3284, 3356, 4105, 4195, 4926, 5034, 5747, 5873, 8210, 8390, 9852, 10068, 11494, 11746, 12315, 12585, 16420, 16780, 17241, 17619, 22988, 23492, 24630, 25170, 28735, 29365, 34482, 35238, 49260, 50340, 57470, 58730, 68964, 70476, 86205, 88095, 114940, 117460, 172410, 176190, 344820, 352380, 688819, 1377638, 2066457, 2755276, 3444095, 4132914, 4821733, 6888190, 8265828, 9643466, 10332285, 13776380, 14465199, 19286932, 20664570, 24108665, 28930398, 41329140, 48217330, 57860796, 72325995, 96434660, 144651990, 289303980]

約数ペア:

[(1, 289303980), (2, 144651990), (3, 96434660), (4, 72325995), (5, 57860796), (6, 48217330), (7, 41329140), (10, 28930398), (12, 24108665), (14, 20664570), (15, 19286932), (20, 14465199), (21, 13776380), (28, 10332285), (30, 9643466), (35, 8265828), (42, 6888190), (60, 4821733), (70, 4132914), (84, 3444095), (105, 2755276), (140, 2066457), (210, 1377638), (420, 688819), (821, 352380), (839, 344820), (1642, 176190), (1678, 172410), (2463, 117460), (2517, 114940), (3284, 88095), (3356, 86205), (4105, 70476), (4195, 68964), (4926, 58730), (5034, 57470), (5747, 50340), (5873, 49260), (8210, 35238), (8390, 34482), (9852, 29365), (10068, 28735), (11494, 25170), (11746, 24630), (12315, 23492), (12585, 22988), (16420, 17619), (16780, 17241)]