82870580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18749}}^1$

素因数の和:18788

約数の個数: 48

約数和(自身を含む): 198450000

約数和(自身を除く): 115579420

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 18749, 37498, 74996, 93745, 187490, 243737, 318733, 374980, 487474, 637466, 974948, 1218685, 1274932, 1593665, 2437370, 3187330, 4143529, 4874740, 6374660, 8287058, 16574116, 20717645, 41435290, 82870580]

約数ペア:

[(1, 82870580), (2, 41435290), (4, 20717645), (5, 16574116), (10, 8287058), (13, 6374660), (17, 4874740), (20, 4143529), (26, 3187330), (34, 2437370), (52, 1593665), (65, 1274932), (68, 1218685), (85, 974948), (130, 637466), (170, 487474), (221, 374980), (260, 318733), (340, 243737), (442, 187490), (884, 93745), (1105, 74996), (2210, 37498), (4420, 18749)]