28587880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2473}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 68356620

約数和(自身を除く): 39768740

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2473, 2890, 4946, 5780, 9892, 11560, 12365, 19784, 24730, 42041, 49460, 84082, 98920, 168164, 210205, 336328, 420410, 714697, 840820, 1429394, 1681640, 2858788, 3573485, 5717576, 7146970, 14293940, 28587880]

約数ペア:

[(1, 28587880), (2, 14293940), (4, 7146970), (5, 5717576), (8, 3573485), (10, 2858788), (17, 1681640), (20, 1429394), (34, 840820), (40, 714697), (68, 420410), (85, 336328), (136, 210205), (170, 168164), (289, 98920), (340, 84082), (578, 49460), (680, 42041), (1156, 24730), (1445, 19784), (2312, 12365), (2473, 11560), (2890, 9892), (4946, 5780)]