9987380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 22861440

約数和(自身を除く): 12874060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 359, 428, 535, 718, 1070, 1391, 1436, 1795, 2140, 2782, 3590, 4667, 5564, 6955, 7180, 9334, 13910, 18668, 23335, 27820, 38413, 46670, 76826, 93340, 153652, 192065, 384130, 499369, 768260, 998738, 1997476, 2496845, 4993690, 9987380]

約数ペア:

[(1, 9987380), (2, 4993690), (4, 2496845), (5, 1997476), (10, 998738), (13, 768260), (20, 499369), (26, 384130), (52, 192065), (65, 153652), (107, 93340), (130, 76826), (214, 46670), (260, 38413), (359, 27820), (428, 23335), (535, 18668), (718, 13910), (1070, 9334), (1391, 7180), (1436, 6955), (1795, 5564), (2140, 4667), (2782, 3590)]