72720046

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 127526400

約数和(自身を除く): 54806354

約数列:

[1, 2, 7, 14, 71, 142, 149, 298, 491, 497, 982, 994, 1043, 2086, 3437, 6874, 10579, 21158, 34861, 69722, 73159, 74053, 146318, 148106, 244027, 488054, 512113, 1024226, 5194289, 10388578, 36360023, 72720046]

約数ペア:

[(1, 72720046), (2, 36360023), (7, 10388578), (14, 5194289), (71, 1024226), (142, 512113), (149, 488054), (298, 244027), (491, 148106), (497, 146318), (982, 74053), (994, 73159), (1043, 69722), (2086, 34861), (3437, 21158), (6874, 10579)]