1265440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1$

素因数の和:745

約数の個数: 48

約数和(自身を含む): 3265920

約数和(自身を除く): 2000480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 719, 880, 1438, 1760, 2876, 3595, 5752, 7190, 7909, 11504, 14380, 15818, 23008, 28760, 31636, 39545, 57520, 63272, 79090, 115040, 126544, 158180, 253088, 316360, 632720, 1265440]

約数ペア:

[(1, 1265440), (2, 632720), (4, 316360), (5, 253088), (8, 158180), (10, 126544), (11, 115040), (16, 79090), (20, 63272), (22, 57520), (32, 39545), (40, 31636), (44, 28760), (55, 23008), (80, 15818), (88, 14380), (110, 11504), (160, 7909), (176, 7190), (220, 5752), (352, 3595), (440, 2876), (719, 1760), (880, 1438)]