90897040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1328

約数の個数: 80

約数和(自身を含む): 230985216

約数和(自身を除く): 140088176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 923, 1040, 1136, 1231, 1420, 1846, 2462, 2840, 3692, 4615, 4924, 5680, 6155, 7384, 9230, 9848, 12310, 14768, 16003, 18460, 19696, 24620, 32006, 36920, 49240, 64012, 73840, 80015, 87401, 98480, 128024, 160030, 174802, 256048, 320060, 349604, 437005, 640120, 699208, 874010, 1136213, 1280240, 1398416, 1748020, 2272426, 3496040, 4544852, 5681065, 6992080, 9089704, 11362130, 18179408, 22724260, 45448520, 90897040]

約数ペア:

[(1, 90897040), (2, 45448520), (4, 22724260), (5, 18179408), (8, 11362130), (10, 9089704), (13, 6992080), (16, 5681065), (20, 4544852), (26, 3496040), (40, 2272426), (52, 1748020), (65, 1398416), (71, 1280240), (80, 1136213), (104, 874010), (130, 699208), (142, 640120), (208, 437005), (260, 349604), (284, 320060), (355, 256048), (520, 174802), (568, 160030), (710, 128024), (923, 98480), (1040, 87401), (1136, 80015), (1231, 73840), (1420, 64012), (1846, 49240), (2462, 36920), (2840, 32006), (3692, 24620), (4615, 19696), (4924, 18460), (5680, 16003), (6155, 14768), (7384, 12310), (9230, 9848)]