77881675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 108475200

約数和(自身を除く): 30593525

約数列:

[1, 5, 17, 25, 29, 71, 85, 89, 145, 355, 425, 445, 493, 725, 1207, 1513, 1775, 2059, 2225, 2465, 2581, 6035, 6319, 7565, 10295, 12325, 12905, 30175, 31595, 35003, 37825, 43877, 51475, 64525, 107423, 157975, 175015, 183251, 219385, 537115, 875075, 916255, 1096925, 2685575, 3115267, 4581275, 15576335, 77881675]

約数ペア:

[(1, 77881675), (5, 15576335), (17, 4581275), (25, 3115267), (29, 2685575), (71, 1096925), (85, 916255), (89, 875075), (145, 537115), (355, 219385), (425, 183251), (445, 175015), (493, 157975), (725, 107423), (1207, 64525), (1513, 51475), (1775, 43877), (2059, 37825), (2225, 35003), (2465, 31595), (2581, 30175), (6035, 12905), (6319, 12325), (7565, 10295)]