80934040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{439}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 199584000

約数和(自身を除く): 118649960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 419, 439, 440, 838, 878, 1676, 1756, 2095, 2195, 3352, 3512, 4190, 4390, 4609, 4829, 8380, 8780, 9218, 9658, 16760, 17560, 18436, 19316, 23045, 24145, 36872, 38632, 46090, 48290, 92180, 96580, 183941, 184360, 193160, 367882, 735764, 919705, 1471528, 1839410, 2023351, 3678820, 4046702, 7357640, 8093404, 10116755, 16186808, 20233510, 40467020, 80934040]

約数ペア:

[(1, 80934040), (2, 40467020), (4, 20233510), (5, 16186808), (8, 10116755), (10, 8093404), (11, 7357640), (20, 4046702), (22, 3678820), (40, 2023351), (44, 1839410), (55, 1471528), (88, 919705), (110, 735764), (220, 367882), (419, 193160), (439, 184360), (440, 183941), (838, 96580), (878, 92180), (1676, 48290), (1756, 46090), (2095, 38632), (2195, 36872), (3352, 24145), (3512, 23045), (4190, 19316), (4390, 18436), (4609, 17560), (4829, 16760), (8380, 9658), (8780, 9218)]