18628980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4373}}^1$

素因数の和:4456

約数の個数: 48

約数和(自身を含む): 52907904

約数和(自身を除く): 34278924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4373, 8746, 13119, 17492, 21865, 26238, 43730, 52476, 65595, 87460, 131190, 262380, 310483, 620966, 931449, 1241932, 1552415, 1862898, 3104830, 3725796, 4657245, 6209660, 9314490, 18628980]

約数ペア:

[(1, 18628980), (2, 9314490), (3, 6209660), (4, 4657245), (5, 3725796), (6, 3104830), (10, 1862898), (12, 1552415), (15, 1241932), (20, 931449), (30, 620966), (60, 310483), (71, 262380), (142, 131190), (213, 87460), (284, 65595), (355, 52476), (426, 43730), (710, 26238), (852, 21865), (1065, 17492), (1420, 13119), (2130, 8746), (4260, 4373)]