138268240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2213}}^1$

素因数の和:2308

約数の個数: 80

約数和(自身を含む): 355798656

約数和(自身を除く): 217530416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1136, 1420, 1562, 2213, 2840, 3124, 3905, 4426, 5680, 6248, 7810, 8852, 11065, 12496, 15620, 17704, 22130, 24343, 31240, 35408, 44260, 48686, 62480, 88520, 97372, 121715, 157123, 177040, 194744, 243430, 314246, 389488, 486860, 628492, 785615, 973720, 1256984, 1571230, 1728353, 1947440, 2513968, 3142460, 3456706, 6284920, 6913412, 8641765, 12569840, 13826824, 17283530, 27653648, 34567060, 69134120, 138268240]

約数ペア:

[(1, 138268240), (2, 69134120), (4, 34567060), (5, 27653648), (8, 17283530), (10, 13826824), (11, 12569840), (16, 8641765), (20, 6913412), (22, 6284920), (40, 3456706), (44, 3142460), (55, 2513968), (71, 1947440), (80, 1728353), (88, 1571230), (110, 1256984), (142, 973720), (176, 785615), (220, 628492), (284, 486860), (355, 389488), (440, 314246), (568, 243430), (710, 194744), (781, 177040), (880, 157123), (1136, 121715), (1420, 97372), (1562, 88520), (2213, 62480), (2840, 48686), (3124, 44260), (3905, 35408), (4426, 31240), (5680, 24343), (6248, 22130), (7810, 17704), (8852, 15620), (11065, 12496)]