72649280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20639}}^1$

素因数の和:20667

約数の個数: 56

約数和(自身を含む): 188732160

約数和(自身を除く): 116082880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 20639, 41278, 82556, 103195, 165112, 206390, 227029, 330224, 412780, 454058, 660448, 825560, 908116, 1135145, 1320896, 1651120, 1816232, 2270290, 3302240, 3632464, 4540580, 6604480, 7264928, 9081160, 14529856, 18162320, 36324640, 72649280]

約数ペア:

[(1, 72649280), (2, 36324640), (4, 18162320), (5, 14529856), (8, 9081160), (10, 7264928), (11, 6604480), (16, 4540580), (20, 3632464), (22, 3302240), (32, 2270290), (40, 1816232), (44, 1651120), (55, 1320896), (64, 1135145), (80, 908116), (88, 825560), (110, 660448), (160, 454058), (176, 412780), (220, 330224), (320, 227029), (352, 206390), (440, 165112), (704, 103195), (880, 82556), (1760, 41278), (3520, 20639)]