20199100780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{154027}}^1$

素因数の和:154198

約数の個数: 48

約数和(自身を含む): 43472862720

約数和(自身を除く): 23273761940

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 158, 166, 316, 332, 395, 415, 790, 830, 1580, 1660, 6557, 13114, 26228, 32785, 65570, 131140, 154027, 308054, 616108, 770135, 1540270, 3080540, 12168133, 12784241, 24336266, 25568482, 48672532, 51136964, 60840665, 63921205, 121681330, 127842410, 243362660, 255684820, 1009955039, 2019910078, 4039820156, 5049775195, 10099550390, 20199100780]

約数ペア:

[(1, 20199100780), (2, 10099550390), (4, 5049775195), (5, 4039820156), (10, 2019910078), (20, 1009955039), (79, 255684820), (83, 243362660), (158, 127842410), (166, 121681330), (316, 63921205), (332, 60840665), (395, 51136964), (415, 48672532), (790, 25568482), (830, 24336266), (1580, 12784241), (1660, 12168133), (6557, 3080540), (13114, 1540270), (26228, 770135), (32785, 616108), (65570, 308054), (131140, 154027)]