123998450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79999}}^1$

素因数の和:80042

約数の個数: 24

約数和(自身を含む): 238080000

約数和(自身を除く): 114081550

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 79999, 159998, 399995, 799990, 1999975, 2479969, 3999950, 4959938, 12399845, 24799690, 61999225, 123998450]

約数ペア:

[(1, 123998450), (2, 61999225), (5, 24799690), (10, 12399845), (25, 4959938), (31, 3999950), (50, 2479969), (62, 1999975), (155, 799990), (310, 399995), (775, 159998), (1550, 79999)]