128521040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1860

約数の個数: 80

約数和(自身を含む): 319265280

約数和(自身を除く): 190744240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1787, 1798, 2320, 2480, 3574, 3596, 4495, 7148, 7192, 8935, 8990, 14296, 14384, 17870, 17980, 28592, 35740, 35960, 51823, 55397, 71480, 71920, 103646, 110794, 142960, 207292, 221588, 259115, 276985, 414584, 443176, 518230, 553970, 829168, 886352, 1036460, 1107940, 1606513, 2072920, 2215880, 3213026, 4145840, 4431760, 6426052, 8032565, 12852104, 16065130, 25704208, 32130260, 64260520, 128521040]

約数ペア:

[(1, 128521040), (2, 64260520), (4, 32130260), (5, 25704208), (8, 16065130), (10, 12852104), (16, 8032565), (20, 6426052), (29, 4431760), (31, 4145840), (40, 3213026), (58, 2215880), (62, 2072920), (80, 1606513), (116, 1107940), (124, 1036460), (145, 886352), (155, 829168), (232, 553970), (248, 518230), (290, 443176), (310, 414584), (464, 276985), (496, 259115), (580, 221588), (620, 207292), (899, 142960), (1160, 110794), (1240, 103646), (1787, 71920), (1798, 71480), (2320, 55397), (2480, 51823), (3574, 35960), (3596, 35740), (4495, 28592), (7148, 17980), (7192, 17870), (8935, 14384), (8990, 14296)]