129499880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1213}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 310735440

約数和(自身を除く): 181235560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 314, 340, 628, 680, 785, 1213, 1256, 1570, 2426, 2669, 3140, 4852, 5338, 6065, 6280, 9704, 10676, 12130, 13345, 20621, 21352, 24260, 26690, 41242, 48520, 53380, 82484, 103105, 106760, 164968, 190441, 206210, 380882, 412420, 761764, 824840, 952205, 1523528, 1904410, 3237497, 3808820, 6474994, 7617640, 12949988, 16187485, 25899976, 32374970, 64749940, 129499880]

約数ペア:

[(1, 129499880), (2, 64749940), (4, 32374970), (5, 25899976), (8, 16187485), (10, 12949988), (17, 7617640), (20, 6474994), (34, 3808820), (40, 3237497), (68, 1904410), (85, 1523528), (136, 952205), (157, 824840), (170, 761764), (314, 412420), (340, 380882), (628, 206210), (680, 190441), (785, 164968), (1213, 106760), (1256, 103105), (1570, 82484), (2426, 53380), (2669, 48520), (3140, 41242), (4852, 26690), (5338, 24260), (6065, 21352), (6280, 20621), (9704, 13345), (10676, 12130)]