19409125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 26028288

約数和(自身を除く): 6619163

約数列:

[1, 5, 23, 25, 43, 115, 125, 157, 215, 575, 785, 989, 1075, 2875, 3611, 3925, 4945, 5375, 6751, 18055, 19625, 24725, 33755, 90275, 123625, 155273, 168775, 451375, 776365, 843875, 3881825, 19409125]

約数ペア:

[(1, 19409125), (5, 3881825), (23, 843875), (25, 776365), (43, 451375), (115, 168775), (125, 155273), (157, 123625), (215, 90275), (575, 33755), (785, 24725), (989, 19625), (1075, 18055), (2875, 6751), (3611, 5375), (3925, 4945)]