16686800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3209}}^1$

素因数の和:3240

約数の個数: 60

約数和(自身を含む): 43187340

約数和(自身を除く): 26500540

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3209, 5200, 6418, 12836, 16045, 25672, 32090, 41717, 51344, 64180, 80225, 83434, 128360, 160450, 166868, 208585, 256720, 320900, 333736, 417170, 641800, 667472, 834340, 1042925, 1283600, 1668680, 2085850, 3337360, 4171700, 8343400, 16686800]

約数ペア:

[(1, 16686800), (2, 8343400), (4, 4171700), (5, 3337360), (8, 2085850), (10, 1668680), (13, 1283600), (16, 1042925), (20, 834340), (25, 667472), (26, 641800), (40, 417170), (50, 333736), (52, 320900), (65, 256720), (80, 208585), (100, 166868), (104, 160450), (130, 128360), (200, 83434), (208, 80225), (260, 64180), (325, 51344), (400, 41717), (520, 32090), (650, 25672), (1040, 16045), (1300, 12836), (2600, 6418), (3209, 5200)]