30854140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 67060224

約数和(自身を除く): 36206084

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 197, 205, 382, 394, 410, 764, 788, 820, 955, 985, 1910, 1970, 3820, 3940, 7831, 8077, 15662, 16154, 31324, 32308, 37627, 39155, 40385, 75254, 78310, 80770, 150508, 156620, 161540, 188135, 376270, 752540, 1542707, 3085414, 6170828, 7713535, 15427070, 30854140]

約数ペア:

[(1, 30854140), (2, 15427070), (4, 7713535), (5, 6170828), (10, 3085414), (20, 1542707), (41, 752540), (82, 376270), (164, 188135), (191, 161540), (197, 156620), (205, 150508), (382, 80770), (394, 78310), (410, 75254), (764, 40385), (788, 39155), (820, 37627), (955, 32308), (985, 31324), (1910, 16154), (1970, 15662), (3820, 8077), (3940, 7831)]