212465620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{983}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 455269248

約数和(自身を除く): 242803628

約数列:

[1, 2, 4, 5, 10, 20, 101, 107, 202, 214, 404, 428, 505, 535, 983, 1010, 1070, 1966, 2020, 2140, 3932, 4915, 9830, 10807, 19660, 21614, 43228, 54035, 99283, 105181, 108070, 198566, 210362, 216140, 397132, 420724, 496415, 525905, 992830, 1051810, 1985660, 2103620, 10623281, 21246562, 42493124, 53116405, 106232810, 212465620]

約数ペア:

[(1, 212465620), (2, 106232810), (4, 53116405), (5, 42493124), (10, 21246562), (20, 10623281), (101, 2103620), (107, 1985660), (202, 1051810), (214, 992830), (404, 525905), (428, 496415), (505, 420724), (535, 397132), (983, 216140), (1010, 210362), (1070, 198566), (1966, 108070), (2020, 105181), (2140, 99283), (3932, 54035), (4915, 43228), (9830, 21614), (10807, 19660)]