18532420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 40836096

約数和(自身を除く): 22303676

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 421, 620, 710, 842, 1420, 1684, 2105, 2201, 4210, 4402, 8420, 8804, 11005, 13051, 22010, 26102, 29891, 44020, 52204, 59782, 65255, 119564, 130510, 149455, 261020, 298910, 597820, 926621, 1853242, 3706484, 4633105, 9266210, 18532420]

約数ペア:

[(1, 18532420), (2, 9266210), (4, 4633105), (5, 3706484), (10, 1853242), (20, 926621), (31, 597820), (62, 298910), (71, 261020), (124, 149455), (142, 130510), (155, 119564), (284, 65255), (310, 59782), (355, 52204), (421, 44020), (620, 29891), (710, 26102), (842, 22010), (1420, 13051), (1684, 11005), (2105, 8804), (2201, 8420), (4210, 4402)]