81913000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6301}}^1$

素因数の和:6335

約数の個数: 64

約数和(自身を含む): 206453520

約数和(自身を除く): 124540520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 2600, 3250, 6301, 6500, 12602, 13000, 25204, 31505, 50408, 63010, 81913, 126020, 157525, 163826, 252040, 315050, 327652, 409565, 630100, 655304, 787625, 819130, 1260200, 1575250, 1638260, 2047825, 3150500, 3276520, 4095650, 6301000, 8191300, 10239125, 16382600, 20478250, 40956500, 81913000]

約数ペア:

[(1, 81913000), (2, 40956500), (4, 20478250), (5, 16382600), (8, 10239125), (10, 8191300), (13, 6301000), (20, 4095650), (25, 3276520), (26, 3150500), (40, 2047825), (50, 1638260), (52, 1575250), (65, 1260200), (100, 819130), (104, 787625), (125, 655304), (130, 630100), (200, 409565), (250, 327652), (260, 315050), (325, 252040), (500, 163826), (520, 157525), (650, 126020), (1000, 81913), (1300, 63010), (1625, 50408), (2600, 31505), (3250, 25204), (6301, 13000), (6500, 12602)]