391444220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{9007}}^1$

素因数の和:9110

約数の個数: 48

約数和(自身を含む): 858066048

約数和(自身を除く): 466621828

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 1060, 2173, 4346, 8692, 9007, 10865, 18014, 21730, 36028, 43460, 45035, 90070, 180140, 369287, 477371, 738574, 954742, 1477148, 1846435, 1909484, 2386855, 3692870, 4773710, 7385740, 9547420, 19572211, 39144422, 78288844, 97861055, 195722110, 391444220]

約数ペア:

[(1, 391444220), (2, 195722110), (4, 97861055), (5, 78288844), (10, 39144422), (20, 19572211), (41, 9547420), (53, 7385740), (82, 4773710), (106, 3692870), (164, 2386855), (205, 1909484), (212, 1846435), (265, 1477148), (410, 954742), (530, 738574), (820, 477371), (1060, 369287), (2173, 180140), (4346, 90070), (8692, 45035), (9007, 43460), (10865, 36028), (18014, 21730)]