21268000

素因数分解:

$2^5\times 5^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 56412720

約数和(自身を除く): 35144720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 325, 400, 409, 416, 500, 520, 650, 800, 818, 1000, 1040, 1300, 1625, 1636, 2000, 2045, 2080, 2600, 3250, 3272, 4000, 4090, 5200, 5317, 6500, 6544, 8180, 10225, 10400, 10634, 13000, 13088, 16360, 20450, 21268, 26000, 26585, 32720, 40900, 42536, 51125, 52000, 53170, 65440, 81800, 85072, 102250, 106340, 132925, 163600, 170144, 204500, 212680, 265850, 327200, 409000, 425360, 531700, 664625, 818000, 850720, 1063400, 1329250, 1636000, 2126800, 2658500, 4253600, 5317000, 10634000, 21268000]

約数ペア:

[(1, 21268000), (2, 10634000), (4, 5317000), (5, 4253600), (8, 2658500), (10, 2126800), (13, 1636000), (16, 1329250), (20, 1063400), (25, 850720), (26, 818000), (32, 664625), (40, 531700), (50, 425360), (52, 409000), (65, 327200), (80, 265850), (100, 212680), (104, 204500), (125, 170144), (130, 163600), (160, 132925), (200, 106340), (208, 102250), (250, 85072), (260, 81800), (325, 65440), (400, 53170), (409, 52000), (416, 51125), (500, 42536), (520, 40900), (650, 32720), (800, 26585), (818, 26000), (1000, 21268), (1040, 20450), (1300, 16360), (1625, 13088), (1636, 13000), (2000, 10634), (2045, 10400), (2080, 10225), (2600, 8180), (3250, 6544), (3272, 6500), (4000, 5317), (4090, 5200)]