81388412

素因数分解:

$2^2\times 7^3\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:595

約数の個数: 48

約数和(自身を含む): 167697600

約数和(自身を除く): 86309188

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 137, 196, 274, 343, 433, 548, 686, 866, 959, 1372, 1732, 1918, 3031, 3836, 6062, 6713, 12124, 13426, 21217, 26852, 42434, 46991, 59321, 84868, 93982, 118642, 148519, 187964, 237284, 297038, 415247, 594076, 830494, 1660988, 2906729, 5813458, 11626916, 20347103, 40694206, 81388412]

約数ペア:

[(1, 81388412), (2, 40694206), (4, 20347103), (7, 11626916), (14, 5813458), (28, 2906729), (49, 1660988), (98, 830494), (137, 594076), (196, 415247), (274, 297038), (343, 237284), (433, 187964), (548, 148519), (686, 118642), (866, 93982), (959, 84868), (1372, 59321), (1732, 46991), (1918, 42434), (3031, 26852), (3836, 21217), (6062, 13426), (6713, 12124)]