28217960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2441}}^1$

素因数の和:2486

約数の個数: 48

約数和(自身を含む): 67472460

約数和(自身を除く): 39254500

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2441, 2890, 4882, 5780, 9764, 11560, 12205, 19528, 24410, 41497, 48820, 82994, 97640, 165988, 207485, 331976, 414970, 705449, 829940, 1410898, 1659880, 2821796, 3527245, 5643592, 7054490, 14108980, 28217960]

約数ペア:

[(1, 28217960), (2, 14108980), (4, 7054490), (5, 5643592), (8, 3527245), (10, 2821796), (17, 1659880), (20, 1410898), (34, 829940), (40, 705449), (68, 414970), (85, 331976), (136, 207485), (170, 165988), (289, 97640), (340, 82994), (578, 48820), (680, 41497), (1156, 24410), (1445, 19528), (2312, 12205), (2441, 11560), (2890, 9764), (4882, 5780)]