291205780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{18691}}^1$

素因数の和:18760

約数の個数: 48

約数和(自身を含む): 659453760

約数和(自身を除く): 368247980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 18691, 37382, 74764, 93455, 186910, 355129, 373820, 710258, 766331, 1420516, 1532662, 1775645, 3065324, 3551290, 3831655, 7102580, 7663310, 14560289, 15326620, 29120578, 58241156, 72801445, 145602890, 291205780]

約数ペア:

[(1, 291205780), (2, 145602890), (4, 72801445), (5, 58241156), (10, 29120578), (19, 15326620), (20, 14560289), (38, 7663310), (41, 7102580), (76, 3831655), (82, 3551290), (95, 3065324), (164, 1775645), (190, 1532662), (205, 1420516), (380, 766331), (410, 710258), (779, 373820), (820, 355129), (1558, 186910), (3116, 93455), (3895, 74764), (7790, 37382), (15580, 18691)]