402350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:644

約数の個数: 24

約数和(自身を含む): 807240

約数和(自身を除く): 404890

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 619, 650, 1238, 3095, 6190, 8047, 15475, 16094, 30950, 40235, 80470, 201175, 402350]

約数ペア:

[(1, 402350), (2, 201175), (5, 80470), (10, 40235), (13, 30950), (25, 16094), (26, 15475), (50, 8047), (65, 6190), (130, 3095), (325, 1238), (619, 650)]