128007124

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{787}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 264944512

約数和(自身を除く): 136937388

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 157, 259, 314, 518, 628, 787, 1036, 1099, 1574, 2198, 3148, 4396, 5509, 5809, 11018, 11618, 22036, 23236, 29119, 40663, 58238, 81326, 116476, 123559, 162652, 203833, 247118, 407666, 494236, 815332, 864913, 1729826, 3459652, 4571683, 9143366, 18286732, 32001781, 64003562, 128007124]

約数ペア:

[(1, 128007124), (2, 64003562), (4, 32001781), (7, 18286732), (14, 9143366), (28, 4571683), (37, 3459652), (74, 1729826), (148, 864913), (157, 815332), (259, 494236), (314, 407666), (518, 247118), (628, 203833), (787, 162652), (1036, 123559), (1099, 116476), (1574, 81326), (2198, 58238), (3148, 40663), (4396, 29119), (5509, 23236), (5809, 22036), (11018, 11618)]