178394420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{3109}}^1$

素因数の和:3288

約数の個数: 48

約数和(自身を含む): 397084800

約数和(自身を除く): 218690380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 380, 604, 755, 1510, 2869, 3020, 3109, 5738, 6218, 11476, 12436, 14345, 15545, 28690, 31090, 57380, 59071, 62180, 118142, 236284, 295355, 469459, 590710, 938918, 1181420, 1877836, 2347295, 4694590, 8919721, 9389180, 17839442, 35678884, 44598605, 89197210, 178394420]

約数ペア:

[(1, 178394420), (2, 89197210), (4, 44598605), (5, 35678884), (10, 17839442), (19, 9389180), (20, 8919721), (38, 4694590), (76, 2347295), (95, 1877836), (151, 1181420), (190, 938918), (302, 590710), (380, 469459), (604, 295355), (755, 236284), (1510, 118142), (2869, 62180), (3020, 59071), (3109, 57380), (5738, 31090), (6218, 28690), (11476, 15545), (12436, 14345)]