1290291275

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{81023}}^1$

素因数の和:81060

約数の個数: 36

約数和(自身を含む): 2004371712

約数和(自身を除く): 714080437

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 455, 637, 1225, 2275, 3185, 15925, 81023, 405115, 567161, 1053299, 2025575, 2835805, 3970127, 5266495, 7373093, 14179025, 19850635, 26332475, 36865465, 51611651, 99253175, 184327325, 258058255, 1290291275]

約数ペア:

[(1, 1290291275), (5, 258058255), (7, 184327325), (13, 99253175), (25, 51611651), (35, 36865465), (49, 26332475), (65, 19850635), (91, 14179025), (175, 7373093), (245, 5266495), (325, 3970127), (455, 2835805), (637, 2025575), (1225, 1053299), (2275, 567161), (3185, 405115), (15925, 81023)]