28895750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 61798464

約数和(自身を除く): 32902714

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 425, 442, 523, 650, 850, 1046, 1105, 1625, 2125, 2210, 2615, 3250, 4250, 5230, 5525, 6799, 8891, 11050, 13075, 13598, 17782, 26150, 27625, 33995, 44455, 55250, 65375, 67990, 88910, 115583, 130750, 169975, 222275, 231166, 339950, 444550, 577915, 849875, 1111375, 1155830, 1699750, 2222750, 2889575, 5779150, 14447875, 28895750]

約数ペア:

[(1, 28895750), (2, 14447875), (5, 5779150), (10, 2889575), (13, 2222750), (17, 1699750), (25, 1155830), (26, 1111375), (34, 849875), (50, 577915), (65, 444550), (85, 339950), (125, 231166), (130, 222275), (170, 169975), (221, 130750), (250, 115583), (325, 88910), (425, 67990), (442, 65375), (523, 55250), (650, 44455), (850, 33995), (1046, 27625), (1105, 26150), (1625, 17782), (2125, 13598), (2210, 13075), (2615, 11050), (3250, 8891), (4250, 6799), (5230, 5525)]