201321640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2027}}^1$

素因数の和:2242

約数の個数: 64

約数和(自身を含む): 490613760

約数和(自身を除く): 289292120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 520, 764, 955, 1528, 1910, 2027, 2483, 3820, 4054, 4966, 7640, 8108, 9932, 10135, 12415, 16216, 19864, 20270, 24830, 26351, 40540, 49660, 52702, 81080, 99320, 105404, 131755, 210808, 263510, 387157, 527020, 774314, 1054040, 1548628, 1935785, 3097256, 3871570, 5033041, 7743140, 10066082, 15486280, 20132164, 25165205, 40264328, 50330410, 100660820, 201321640]

約数ペア:

[(1, 201321640), (2, 100660820), (4, 50330410), (5, 40264328), (8, 25165205), (10, 20132164), (13, 15486280), (20, 10066082), (26, 7743140), (40, 5033041), (52, 3871570), (65, 3097256), (104, 1935785), (130, 1548628), (191, 1054040), (260, 774314), (382, 527020), (520, 387157), (764, 263510), (955, 210808), (1528, 131755), (1910, 105404), (2027, 99320), (2483, 81080), (3820, 52702), (4054, 49660), (4966, 40540), (7640, 26351), (8108, 24830), (9932, 20270), (10135, 19864), (12415, 16216)]