2019920890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{218843}}^1$

素因数の和:218934

約数の個数: 32

約数和(自身を含む): 3970705536

約数和(自身を除く): 1950784646

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 4615, 9230, 218843, 437686, 1094215, 2188430, 2844959, 5689918, 14224795, 15537853, 28449590, 31075706, 77689265, 155378530, 201992089, 403984178, 1009960445, 2019920890]

約数ペア:

[(1, 2019920890), (2, 1009960445), (5, 403984178), (10, 201992089), (13, 155378530), (26, 77689265), (65, 31075706), (71, 28449590), (130, 15537853), (142, 14224795), (355, 5689918), (710, 2844959), (923, 2188430), (1846, 1094215), (4615, 437686), (9230, 218843)]