72177160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164039}}^1$

素因数の和:164061

約数の個数: 32

約数和(自身を含む): 177163200

約数和(自身を除く): 104986040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 164039, 328078, 656156, 820195, 1312312, 1640390, 1804429, 3280780, 3608858, 6561560, 7217716, 9022145, 14435432, 18044290, 36088580, 72177160]

約数ペア:

[(1, 72177160), (2, 36088580), (4, 18044290), (5, 14435432), (8, 9022145), (10, 7217716), (11, 6561560), (20, 3608858), (22, 3280780), (40, 1804429), (44, 1640390), (55, 1312312), (88, 820195), (110, 656156), (220, 328078), (440, 164039)]