72638920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 167731200

約数和(自身を除く): 95092280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 127, 158, 181, 254, 316, 362, 395, 508, 632, 635, 724, 790, 905, 1016, 1270, 1448, 1580, 1810, 2540, 3160, 3620, 5080, 7240, 10033, 14299, 20066, 22987, 28598, 40132, 45974, 50165, 57196, 71495, 80264, 91948, 100330, 114392, 114935, 142990, 183896, 200660, 229870, 285980, 401320, 459740, 571960, 919480, 1815973, 3631946, 7263892, 9079865, 14527784, 18159730, 36319460, 72638920]

約数ペア:

[(1, 72638920), (2, 36319460), (4, 18159730), (5, 14527784), (8, 9079865), (10, 7263892), (20, 3631946), (40, 1815973), (79, 919480), (127, 571960), (158, 459740), (181, 401320), (254, 285980), (316, 229870), (362, 200660), (395, 183896), (508, 142990), (632, 114935), (635, 114392), (724, 100330), (790, 91948), (905, 80264), (1016, 71495), (1270, 57196), (1448, 50165), (1580, 45974), (1810, 40132), (2540, 28598), (3160, 22987), (3620, 20066), (5080, 14299), (7240, 10033)]