20199004180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{304477}}^1$

素因数の和:304624

約数の個数: 48

約数和(自身を含む): 44195590656

約数和(自身を除く): 23996586476

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 310, 428, 535, 620, 1070, 2140, 3317, 6634, 13268, 16585, 33170, 66340, 304477, 608954, 1217908, 1522385, 3044770, 6089540, 9438787, 18877574, 32579039, 37755148, 47193935, 65158078, 94387870, 130316156, 162895195, 188775740, 325790390, 651580780, 1009950209, 2019900418, 4039800836, 5049751045, 10099502090, 20199004180]

約数ペア:

[(1, 20199004180), (2, 10099502090), (4, 5049751045), (5, 4039800836), (10, 2019900418), (20, 1009950209), (31, 651580780), (62, 325790390), (107, 188775740), (124, 162895195), (155, 130316156), (214, 94387870), (310, 65158078), (428, 47193935), (535, 37755148), (620, 32579039), (1070, 18877574), (2140, 9438787), (3317, 6089540), (6634, 3044770), (13268, 1522385), (16585, 1217908), (33170, 608954), (66340, 304477)]