3789980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 8600256

約数和(自身を除く): 4810276

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 157, 170, 284, 314, 340, 355, 628, 710, 785, 1207, 1420, 1570, 2414, 2669, 3140, 4828, 5338, 6035, 10676, 11147, 12070, 13345, 22294, 24140, 26690, 44588, 53380, 55735, 111470, 189499, 222940, 378998, 757996, 947495, 1894990, 3789980]

約数ペア:

[(1, 3789980), (2, 1894990), (4, 947495), (5, 757996), (10, 378998), (17, 222940), (20, 189499), (34, 111470), (68, 55735), (71, 53380), (85, 44588), (142, 26690), (157, 24140), (170, 22294), (284, 13345), (314, 12070), (340, 11147), (355, 10676), (628, 6035), (710, 5338), (785, 4828), (1207, 3140), (1420, 2669), (1570, 2414)]