80520390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12601}}^1$

素因数の和:12685

約数の個数: 48

約数和(自身を含む): 212318496

約数和(自身を除く): 131798106

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 12601, 25202, 37803, 63005, 75606, 113409, 126010, 189015, 226818, 378030, 567045, 894671, 1134090, 1789342, 2684013, 4473355, 5368026, 8052039, 8946710, 13420065, 16104078, 26840130, 40260195, 80520390]

約数ペア:

[(1, 80520390), (2, 40260195), (3, 26840130), (5, 16104078), (6, 13420065), (9, 8946710), (10, 8052039), (15, 5368026), (18, 4473355), (30, 2684013), (45, 1789342), (71, 1134090), (90, 894671), (142, 567045), (213, 378030), (355, 226818), (426, 189015), (639, 126010), (710, 113409), (1065, 75606), (1278, 63005), (2130, 37803), (3195, 25202), (6390, 12601)]