20513340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113963}}^1$

素因数の和:113978

約数の個数: 36

約数和(自身を含む): 62224344

約数和(自身を除く): 41711004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113963, 227926, 341889, 455852, 569815, 683778, 1025667, 1139630, 1367556, 1709445, 2051334, 2279260, 3418890, 4102668, 5128335, 6837780, 10256670, 20513340]

約数ペア:

[(1, 20513340), (2, 10256670), (3, 6837780), (4, 5128335), (5, 4102668), (6, 3418890), (9, 2279260), (10, 2051334), (12, 1709445), (15, 1367556), (18, 1139630), (20, 1025667), (30, 683778), (36, 569815), (45, 455852), (60, 341889), (90, 227926), (180, 113963)]