161763940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{1117}}^1$

素因数の和:1696

約数の個数: 48

約数和(自身を含む): 366820272

約数和(自身を除く): 205056332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 557, 1114, 1117, 2228, 2234, 2785, 4468, 5570, 5585, 7241, 11140, 11170, 14482, 14521, 22340, 28964, 29042, 36205, 58084, 72410, 72605, 144820, 145210, 290420, 622169, 1244338, 2488676, 3110845, 6221690, 8088197, 12443380, 16176394, 32352788, 40440985, 80881970, 161763940]

約数ペア:

[(1, 161763940), (2, 80881970), (4, 40440985), (5, 32352788), (10, 16176394), (13, 12443380), (20, 8088197), (26, 6221690), (52, 3110845), (65, 2488676), (130, 1244338), (260, 622169), (557, 290420), (1114, 145210), (1117, 144820), (2228, 72605), (2234, 72410), (2785, 58084), (4468, 36205), (5570, 29042), (5585, 28964), (7241, 22340), (11140, 14521), (11170, 14482)]