161332720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{379}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 399483360

約数和(自身を除く): 238150640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 313, 340, 379, 626, 680, 758, 1252, 1360, 1516, 1565, 1895, 2504, 3032, 3130, 3790, 5008, 5321, 6064, 6260, 6443, 7580, 10642, 12520, 12886, 15160, 21284, 25040, 25772, 26605, 30320, 32215, 42568, 51544, 53210, 64430, 85136, 103088, 106420, 118627, 128860, 212840, 237254, 257720, 425680, 474508, 515440, 593135, 949016, 1186270, 1898032, 2016659, 2372540, 4033318, 4745080, 8066636, 9490160, 10083295, 16133272, 20166590, 32266544, 40333180, 80666360, 161332720]

約数ペア:

[(1, 161332720), (2, 80666360), (4, 40333180), (5, 32266544), (8, 20166590), (10, 16133272), (16, 10083295), (17, 9490160), (20, 8066636), (34, 4745080), (40, 4033318), (68, 2372540), (80, 2016659), (85, 1898032), (136, 1186270), (170, 949016), (272, 593135), (313, 515440), (340, 474508), (379, 425680), (626, 257720), (680, 237254), (758, 212840), (1252, 128860), (1360, 118627), (1516, 106420), (1565, 103088), (1895, 85136), (2504, 64430), (3032, 53210), (3130, 51544), (3790, 42568), (5008, 32215), (5321, 30320), (6064, 26605), (6260, 25772), (6443, 25040), (7580, 21284), (10642, 15160), (12520, 12886)]