291257330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{320063}}^1$

素因数の和:320090

約数の個数: 32

約数和(自身を含む): 645249024

約数和(自身を除く): 353991694

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 320063, 640126, 1600315, 2240441, 3200630, 4160819, 4480882, 8321638, 11202205, 20804095, 22404410, 29125733, 41608190, 58251466, 145628665, 291257330]

約数ペア:

[(1, 291257330), (2, 145628665), (5, 58251466), (7, 41608190), (10, 29125733), (13, 22404410), (14, 20804095), (26, 11202205), (35, 8321638), (65, 4480882), (70, 4160819), (91, 3200630), (130, 2240441), (182, 1600315), (455, 640126), (910, 320063)]