306487120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{53959}}^1$

素因数の和:54043

約数の個数: 40

約数和(自身を含む): 722632320

約数和(自身を除く): 416145200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 53959, 107918, 215836, 269795, 431672, 539590, 863344, 1079180, 2158360, 3831089, 4316720, 7662178, 15324356, 19155445, 30648712, 38310890, 61297424, 76621780, 153243560, 306487120]

約数ペア:

[(1, 306487120), (2, 153243560), (4, 76621780), (5, 61297424), (8, 38310890), (10, 30648712), (16, 19155445), (20, 15324356), (40, 7662178), (71, 4316720), (80, 3831089), (142, 2158360), (284, 1079180), (355, 863344), (568, 539590), (710, 431672), (1136, 269795), (1420, 215836), (2840, 107918), (5680, 53959)]