81487010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 170311680

約数和(自身を除く): 88824670

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 127, 190, 209, 254, 307, 418, 614, 635, 1045, 1270, 1397, 1535, 2090, 2413, 2794, 3070, 3377, 4826, 5833, 6754, 6985, 11666, 12065, 13970, 16885, 24130, 26543, 29165, 33770, 38989, 53086, 58330, 64163, 77978, 128326, 132715, 194945, 265430, 320815, 389890, 428879, 641630, 740791, 857758, 1481582, 2144395, 3703955, 4288790, 7407910, 8148701, 16297402, 40743505, 81487010]

約数ペア:

[(1, 81487010), (2, 40743505), (5, 16297402), (10, 8148701), (11, 7407910), (19, 4288790), (22, 3703955), (38, 2144395), (55, 1481582), (95, 857758), (110, 740791), (127, 641630), (190, 428879), (209, 389890), (254, 320815), (307, 265430), (418, 194945), (614, 132715), (635, 128326), (1045, 77978), (1270, 64163), (1397, 58330), (1535, 53086), (2090, 38989), (2413, 33770), (2794, 29165), (3070, 26543), (3377, 24130), (4826, 16885), (5833, 13970), (6754, 12065), (6985, 11666)]