20884690940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{218963}}^1$

素因数の和:219242

約数の個数: 48

約数和(自身を含む): 46350299520

約数和(自身を除く): 25465608580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 380, 502, 1004, 1255, 2510, 4769, 5020, 9538, 19076, 23845, 47690, 95380, 218963, 437926, 875852, 1094815, 2189630, 4160297, 4379260, 8320594, 16641188, 20801485, 41602970, 54959713, 83205940, 109919426, 219838852, 274798565, 549597130, 1044234547, 1099194260, 2088469094, 4176938188, 5221172735, 10442345470, 20884690940]

約数ペア:

[(1, 20884690940), (2, 10442345470), (4, 5221172735), (5, 4176938188), (10, 2088469094), (19, 1099194260), (20, 1044234547), (38, 549597130), (76, 274798565), (95, 219838852), (190, 109919426), (251, 83205940), (380, 54959713), (502, 41602970), (1004, 20801485), (1255, 16641188), (2510, 8320594), (4769, 4379260), (5020, 4160297), (9538, 2189630), (19076, 1094815), (23845, 875852), (47690, 437926), (95380, 218963)]