29999560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 72180720

約数和(自身を除く): 42181160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 281, 314, 340, 562, 628, 680, 785, 1124, 1256, 1405, 1570, 2248, 2669, 2810, 3140, 4777, 5338, 5620, 6280, 9554, 10676, 11240, 13345, 19108, 21352, 23885, 26690, 38216, 44117, 47770, 53380, 88234, 95540, 106760, 176468, 191080, 220585, 352936, 441170, 749989, 882340, 1499978, 1764680, 2999956, 3749945, 5999912, 7499890, 14999780, 29999560]

約数ペア:

[(1, 29999560), (2, 14999780), (4, 7499890), (5, 5999912), (8, 3749945), (10, 2999956), (17, 1764680), (20, 1499978), (34, 882340), (40, 749989), (68, 441170), (85, 352936), (136, 220585), (157, 191080), (170, 176468), (281, 106760), (314, 95540), (340, 88234), (562, 53380), (628, 47770), (680, 44117), (785, 38216), (1124, 26690), (1256, 23885), (1405, 21352), (1570, 19108), (2248, 13345), (2669, 11240), (2810, 10676), (3140, 9554), (4777, 6280), (5338, 5620)]