18883967780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1237}}^1\times {\mathrm{18617}}^1$

素因数の和:19904

約数の個数: 48

約数和(自身を含む): 40658584176

約数和(自身を除く): 21774616396

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1237, 2474, 4948, 6185, 12370, 18617, 24740, 37234, 50717, 74468, 93085, 101434, 186170, 202868, 253585, 372340, 507170, 763297, 1014340, 1526594, 3053188, 3816485, 7632970, 15265940, 23029229, 46058458, 92116916, 115146145, 230292290, 460584580, 944198389, 1888396778, 3776793556, 4720991945, 9441983890, 18883967780]

約数ペア:

[(1, 18883967780), (2, 9441983890), (4, 4720991945), (5, 3776793556), (10, 1888396778), (20, 944198389), (41, 460584580), (82, 230292290), (164, 115146145), (205, 92116916), (410, 46058458), (820, 23029229), (1237, 15265940), (2474, 7632970), (4948, 3816485), (6185, 3053188), (12370, 1526594), (18617, 1014340), (24740, 763297), (37234, 507170), (50717, 372340), (74468, 253585), (93085, 202868), (101434, 186170)]