400145210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1290791}}^1$

素因数の和:1290829

約数の個数: 16

約数和(自身を含む): 743496192

約数和(自身を除く): 343350982

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1290791, 2581582, 6453955, 12907910, 40014521, 80029042, 200072605, 400145210]

約数ペア:

[(1, 400145210), (2, 200072605), (5, 80029042), (10, 40014521), (31, 12907910), (62, 6453955), (155, 2581582), (310, 1290791)]