290417420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{1319}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 622036800

約数和(自身を除く): 331619380

約数列:

[1, 2, 4, 5, 10, 20, 101, 109, 202, 218, 404, 436, 505, 545, 1010, 1090, 1319, 2020, 2180, 2638, 5276, 6595, 11009, 13190, 22018, 26380, 44036, 55045, 110090, 133219, 143771, 220180, 266438, 287542, 532876, 575084, 666095, 718855, 1332190, 1437710, 2664380, 2875420, 14520871, 29041742, 58083484, 72604355, 145208710, 290417420]

約数ペア:

[(1, 290417420), (2, 145208710), (4, 72604355), (5, 58083484), (10, 29041742), (20, 14520871), (101, 2875420), (109, 2664380), (202, 1437710), (218, 1332190), (404, 718855), (436, 666095), (505, 575084), (545, 532876), (1010, 287542), (1090, 266438), (1319, 220180), (2020, 143771), (2180, 133219), (2638, 110090), (5276, 55045), (6595, 44036), (11009, 26380), (13190, 22018)]