81776380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:539

約数の個数: 96

約数和(自身を含む): 209986560

約数和(自身を除く): 128210180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 71, 76, 95, 133, 140, 142, 190, 266, 284, 355, 380, 433, 497, 532, 665, 710, 866, 994, 1330, 1349, 1420, 1732, 1988, 2165, 2485, 2660, 2698, 3031, 4330, 4970, 5396, 6062, 6745, 8227, 8660, 9443, 9940, 12124, 13490, 15155, 16454, 18886, 26980, 30310, 30743, 32908, 37772, 41135, 47215, 57589, 60620, 61486, 82270, 94430, 115178, 122972, 153715, 164540, 188860, 215201, 230356, 287945, 307430, 430402, 575890, 584117, 614860, 860804, 1076005, 1151780, 1168234, 2152010, 2336468, 2920585, 4088819, 4304020, 5841170, 8177638, 11682340, 16355276, 20444095, 40888190, 81776380]

約数ペア:

[(1, 81776380), (2, 40888190), (4, 20444095), (5, 16355276), (7, 11682340), (10, 8177638), (14, 5841170), (19, 4304020), (20, 4088819), (28, 2920585), (35, 2336468), (38, 2152010), (70, 1168234), (71, 1151780), (76, 1076005), (95, 860804), (133, 614860), (140, 584117), (142, 575890), (190, 430402), (266, 307430), (284, 287945), (355, 230356), (380, 215201), (433, 188860), (497, 164540), (532, 153715), (665, 122972), (710, 115178), (866, 94430), (994, 82270), (1330, 61486), (1349, 60620), (1420, 57589), (1732, 47215), (1988, 41135), (2165, 37772), (2485, 32908), (2660, 30743), (2698, 30310), (3031, 26980), (4330, 18886), (4970, 16454), (5396, 15155), (6062, 13490), (6745, 12124), (8227, 9940), (8660, 9443)]