639359644

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{26959}}^1$

素因数の和:26999

約数の個数: 54

約数和(自身を含む): 1430686320

約数和(自身を除く): 791326676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 1078, 1694, 2156, 3388, 5929, 11858, 23716, 26959, 53918, 107836, 188713, 296549, 377426, 593098, 754852, 1186196, 1320991, 2075843, 2641982, 3262039, 4151686, 5283964, 6524078, 8303372, 13048156, 14530901, 22834273, 29061802, 45668546, 58123604, 91337092, 159839911, 319679822, 639359644]

約数ペア:

[(1, 639359644), (2, 319679822), (4, 159839911), (7, 91337092), (11, 58123604), (14, 45668546), (22, 29061802), (28, 22834273), (44, 14530901), (49, 13048156), (77, 8303372), (98, 6524078), (121, 5283964), (154, 4151686), (196, 3262039), (242, 2641982), (308, 2075843), (484, 1320991), (539, 1186196), (847, 754852), (1078, 593098), (1694, 377426), (2156, 296549), (3388, 188713), (5929, 107836), (11858, 53918), (23716, 26959)]