9225740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 20139840

約数和(自身を除く): 10914100

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 89, 142, 146, 178, 284, 292, 355, 356, 365, 445, 710, 730, 890, 1420, 1460, 1780, 5183, 6319, 6497, 10366, 12638, 12994, 20732, 25276, 25915, 25988, 31595, 32485, 51830, 63190, 64970, 103660, 126380, 129940, 461287, 922574, 1845148, 2306435, 4612870, 9225740]

約数ペア:

[(1, 9225740), (2, 4612870), (4, 2306435), (5, 1845148), (10, 922574), (20, 461287), (71, 129940), (73, 126380), (89, 103660), (142, 64970), (146, 63190), (178, 51830), (284, 32485), (292, 31595), (355, 25988), (356, 25915), (365, 25276), (445, 20732), (710, 12994), (730, 12638), (890, 10366), (1420, 6497), (1460, 6319), (1780, 5183)]