201705980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{8839}}^1$

素因数の和:9018

約数の個数: 48

約数和(自身を含む): 487119360

約数和(自身を除く): 285413380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1630, 2282, 3260, 4564, 5705, 8839, 11410, 17678, 22820, 35356, 44195, 61873, 88390, 123746, 176780, 247492, 309365, 618730, 1237460, 1440757, 2881514, 5763028, 7203785, 10085299, 14407570, 20170598, 28815140, 40341196, 50426495, 100852990, 201705980]

約数ペア:

[(1, 201705980), (2, 100852990), (4, 50426495), (5, 40341196), (7, 28815140), (10, 20170598), (14, 14407570), (20, 10085299), (28, 7203785), (35, 5763028), (70, 2881514), (140, 1440757), (163, 1237460), (326, 618730), (652, 309365), (815, 247492), (1141, 176780), (1630, 123746), (2282, 88390), (3260, 61873), (4564, 44195), (5705, 35356), (8839, 22820), (11410, 17678)]