19236460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 41640480

約数和(自身を除く): 22404020

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 107, 178, 202, 214, 356, 404, 428, 445, 505, 535, 890, 1010, 1070, 1780, 2020, 2140, 8989, 9523, 10807, 17978, 19046, 21614, 35956, 38092, 43228, 44945, 47615, 54035, 89890, 95230, 108070, 179780, 190460, 216140, 961823, 1923646, 3847292, 4809115, 9618230, 19236460]

約数ペア:

[(1, 19236460), (2, 9618230), (4, 4809115), (5, 3847292), (10, 1923646), (20, 961823), (89, 216140), (101, 190460), (107, 179780), (178, 108070), (202, 95230), (214, 89890), (356, 54035), (404, 47615), (428, 44945), (445, 43228), (505, 38092), (535, 35956), (890, 21614), (1010, 19046), (1070, 17978), (1780, 10807), (2020, 9523), (2140, 8989)]