398465470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{74759}}^1$

素因数の和:74820

約数の個数: 32

約数和(自身を含む): 791259840

約数和(自身を除く): 392794370

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 5330, 74759, 149518, 373795, 747590, 971867, 1943734, 3065119, 4859335, 6130238, 9718670, 15325595, 30651190, 39846547, 79693094, 199232735, 398465470]

約数ペア:

[(1, 398465470), (2, 199232735), (5, 79693094), (10, 39846547), (13, 30651190), (26, 15325595), (41, 9718670), (65, 6130238), (82, 4859335), (130, 3065119), (205, 1943734), (410, 971867), (533, 747590), (1066, 373795), (2665, 149518), (5330, 74759)]