291256180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1\times {\mathrm{809}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 627056640

約数和(自身を除く): 335800460

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 383, 470, 766, 809, 940, 1532, 1618, 1915, 3236, 3830, 4045, 7660, 8090, 16180, 18001, 36002, 38023, 72004, 76046, 90005, 152092, 180010, 190115, 309847, 360020, 380230, 619694, 760460, 1239388, 1549235, 3098470, 6196940, 14562809, 29125618, 58251236, 72814045, 145628090, 291256180]

約数ペア:

[(1, 291256180), (2, 145628090), (4, 72814045), (5, 58251236), (10, 29125618), (20, 14562809), (47, 6196940), (94, 3098470), (188, 1549235), (235, 1239388), (383, 760460), (470, 619694), (766, 380230), (809, 360020), (940, 309847), (1532, 190115), (1618, 180010), (1915, 152092), (3236, 90005), (3830, 76046), (4045, 72004), (7660, 38023), (8090, 36002), (16180, 18001)]