2155940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{373}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 4822356

約数和(自身を除く): 2666416

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 373, 578, 746, 1156, 1445, 1492, 1865, 2890, 3730, 5780, 6341, 7460, 12682, 25364, 31705, 63410, 107797, 126820, 215594, 431188, 538985, 1077970, 2155940]

約数ペア:

[(1, 2155940), (2, 1077970), (4, 538985), (5, 431188), (10, 215594), (17, 126820), (20, 107797), (34, 63410), (68, 31705), (85, 25364), (170, 12682), (289, 7460), (340, 6341), (373, 5780), (578, 3730), (746, 2890), (1156, 1865), (1445, 1492)]