82478500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{12689}}^1$

素因数の和:12721

約数の個数: 48

約数和(自身を含む): 194004720

約数和(自身を除く): 111526220

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 12689, 25378, 50756, 63445, 126890, 164957, 253780, 317225, 329914, 634450, 659828, 824785, 1268900, 1586125, 1649570, 3172250, 3299140, 4123925, 6344500, 8247850, 16495700, 20619625, 41239250, 82478500]

約数ペア:

[(1, 82478500), (2, 41239250), (4, 20619625), (5, 16495700), (10, 8247850), (13, 6344500), (20, 4123925), (25, 3299140), (26, 3172250), (50, 1649570), (52, 1586125), (65, 1268900), (100, 824785), (125, 659828), (130, 634450), (250, 329914), (260, 317225), (325, 253780), (500, 164957), (650, 126890), (1300, 63445), (1625, 50756), (3250, 25378), (6500, 12689)]