31090280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3517}}^1$

素因数の和:3558

約数の個数: 64

約数和(自身を含む): 79788240

約数和(自身を除く): 48697960

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3517, 4420, 7034, 8840, 14068, 17585, 28136, 35170, 45721, 59789, 70340, 91442, 119578, 140680, 182884, 228605, 239156, 298945, 365768, 457210, 478312, 597890, 777257, 914420, 1195780, 1554514, 1828840, 2391560, 3109028, 3886285, 6218056, 7772570, 15545140, 31090280]

約数ペア:

[(1, 31090280), (2, 15545140), (4, 7772570), (5, 6218056), (8, 3886285), (10, 3109028), (13, 2391560), (17, 1828840), (20, 1554514), (26, 1195780), (34, 914420), (40, 777257), (52, 597890), (65, 478312), (68, 457210), (85, 365768), (104, 298945), (130, 239156), (136, 228605), (170, 182884), (221, 140680), (260, 119578), (340, 91442), (442, 70340), (520, 59789), (680, 45721), (884, 35170), (1105, 28136), (1768, 17585), (2210, 14068), (3517, 8840), (4420, 7034)]