127620980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 275982336

約数和(自身を除く): 148361356

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 137, 188, 235, 274, 470, 548, 685, 940, 991, 1370, 1982, 2740, 3964, 4955, 6439, 9910, 12878, 19820, 25756, 32195, 46577, 64390, 93154, 128780, 135767, 186308, 232885, 271534, 465770, 543068, 678835, 931540, 1357670, 2715340, 6381049, 12762098, 25524196, 31905245, 63810490, 127620980]

約数ペア:

[(1, 127620980), (2, 63810490), (4, 31905245), (5, 25524196), (10, 12762098), (20, 6381049), (47, 2715340), (94, 1357670), (137, 931540), (188, 678835), (235, 543068), (274, 465770), (470, 271534), (548, 232885), (685, 186308), (940, 135767), (991, 128780), (1370, 93154), (1982, 64390), (2740, 46577), (3964, 32195), (4955, 25756), (6439, 19820), (9910, 12878)]