400143250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{123121}}^1$

素因数の和:123151

約数の個数: 32

約数和(自身を含む): 806695344

約数和(自身を除く): 406552094

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 123121, 246242, 615605, 1231210, 1600573, 3078025, 3201146, 6156050, 8002865, 15390125, 16005730, 30780250, 40014325, 80028650, 200071625, 400143250]

約数ペア:

[(1, 400143250), (2, 200071625), (5, 80028650), (10, 40014325), (13, 30780250), (25, 16005730), (26, 15390125), (50, 8002865), (65, 6156050), (125, 3201146), (130, 3078025), (250, 1600573), (325, 1231210), (650, 615605), (1625, 246242), (3250, 123121)]