20170660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 24282140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 415, 419, 580, 830, 838, 1660, 1676, 2095, 2407, 4190, 4814, 8380, 9628, 12035, 12151, 24070, 24302, 34777, 48140, 48604, 60755, 69554, 121510, 139108, 173885, 243020, 347770, 695540, 1008533, 2017066, 4034132, 5042665, 10085330, 20170660]

約数ペア:

[(1, 20170660), (2, 10085330), (4, 5042665), (5, 4034132), (10, 2017066), (20, 1008533), (29, 695540), (58, 347770), (83, 243020), (116, 173885), (145, 139108), (166, 121510), (290, 69554), (332, 60755), (415, 48604), (419, 48140), (580, 34777), (830, 24302), (838, 24070), (1660, 12151), (1676, 12035), (2095, 9628), (2407, 8380), (4190, 4814)]