131666840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 304430400

約数和(自身を除く): 172763560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 173, 212, 265, 346, 359, 424, 530, 692, 718, 865, 1060, 1384, 1436, 1730, 1795, 2120, 2872, 3460, 3590, 6920, 7180, 9169, 14360, 18338, 19027, 36676, 38054, 45845, 62107, 73352, 76108, 91690, 95135, 124214, 152216, 183380, 190270, 248428, 310535, 366760, 380540, 496856, 621070, 761080, 1242140, 2484280, 3291671, 6583342, 13166684, 16458355, 26333368, 32916710, 65833420, 131666840]

約数ペア:

[(1, 131666840), (2, 65833420), (4, 32916710), (5, 26333368), (8, 16458355), (10, 13166684), (20, 6583342), (40, 3291671), (53, 2484280), (106, 1242140), (173, 761080), (212, 621070), (265, 496856), (346, 380540), (359, 366760), (424, 310535), (530, 248428), (692, 190270), (718, 183380), (865, 152216), (1060, 124214), (1384, 95135), (1436, 91690), (1730, 76108), (1795, 73352), (2120, 62107), (2872, 45845), (3460, 38054), (3590, 36676), (6920, 19027), (7180, 18338), (9169, 14360)]