15400180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 34030080

約数和(自身を除く): 18629900

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 421, 590, 620, 842, 1180, 1684, 1829, 2105, 3658, 4210, 7316, 8420, 9145, 13051, 18290, 24839, 26102, 36580, 49678, 52204, 65255, 99356, 124195, 130510, 248390, 261020, 496780, 770009, 1540018, 3080036, 3850045, 7700090, 15400180]

約数ペア:

[(1, 15400180), (2, 7700090), (4, 3850045), (5, 3080036), (10, 1540018), (20, 770009), (31, 496780), (59, 261020), (62, 248390), (118, 130510), (124, 124195), (155, 99356), (236, 65255), (295, 52204), (310, 49678), (421, 36580), (590, 26102), (620, 24839), (842, 18290), (1180, 13051), (1684, 9145), (1829, 8420), (2105, 7316), (3658, 4210)]