31801220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{773}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 77824152

約数和(自身を除く): 46022932

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 484, 605, 748, 773, 935, 1210, 1546, 1870, 2057, 2420, 3092, 3740, 3865, 4114, 7730, 8228, 8503, 10285, 13141, 15460, 17006, 20570, 26282, 34012, 41140, 42515, 52564, 65705, 85030, 93533, 131410, 144551, 170060, 187066, 262820, 289102, 374132, 467665, 578204, 722755, 935330, 1445510, 1590061, 1870660, 2891020, 3180122, 6360244, 7950305, 15900610, 31801220]

約数ペア:

[(1, 31801220), (2, 15900610), (4, 7950305), (5, 6360244), (10, 3180122), (11, 2891020), (17, 1870660), (20, 1590061), (22, 1445510), (34, 935330), (44, 722755), (55, 578204), (68, 467665), (85, 374132), (110, 289102), (121, 262820), (170, 187066), (187, 170060), (220, 144551), (242, 131410), (340, 93533), (374, 85030), (484, 65705), (605, 52564), (748, 42515), (773, 41140), (935, 34012), (1210, 26282), (1546, 20570), (1870, 17006), (2057, 15460), (2420, 13141), (3092, 10285), (3740, 8503), (3865, 8228), (4114, 7730)]