155122280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1453}}^1$

素因数の和:1638

約数の個数: 64

約数和(自身を含む): 372165840

約数和(自身を除く): 217043560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 314, 340, 628, 680, 785, 1256, 1453, 1570, 2669, 2906, 3140, 5338, 5812, 6280, 7265, 10676, 11624, 13345, 14530, 21352, 24701, 26690, 29060, 49402, 53380, 58120, 98804, 106760, 123505, 197608, 228121, 247010, 456242, 494020, 912484, 988040, 1140605, 1824968, 2281210, 3878057, 4562420, 7756114, 9124840, 15512228, 19390285, 31024456, 38780570, 77561140, 155122280]

約数ペア:

[(1, 155122280), (2, 77561140), (4, 38780570), (5, 31024456), (8, 19390285), (10, 15512228), (17, 9124840), (20, 7756114), (34, 4562420), (40, 3878057), (68, 2281210), (85, 1824968), (136, 1140605), (157, 988040), (170, 912484), (314, 494020), (340, 456242), (628, 247010), (680, 228121), (785, 197608), (1256, 123505), (1453, 106760), (1570, 98804), (2669, 58120), (2906, 53380), (3140, 49402), (5338, 29060), (5812, 26690), (6280, 24701), (7265, 21352), (10676, 14530), (11624, 13345)]