626804120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1\times {\mathrm{977}}^1$

素因数の和:1404

約数の個数: 64

約数和(自身を含む): 1448457120

約数和(自身を除く): 821653000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 373, 430, 746, 860, 977, 1492, 1720, 1865, 1954, 2984, 3730, 3908, 4885, 7460, 7816, 9770, 14920, 16039, 19540, 32078, 39080, 42011, 64156, 80195, 84022, 128312, 160390, 168044, 210055, 320780, 336088, 364421, 420110, 641560, 728842, 840220, 1457684, 1680440, 1822105, 2915368, 3644210, 7288420, 14576840, 15670103, 31340206, 62680412, 78350515, 125360824, 156701030, 313402060, 626804120]

約数ペア:

[(1, 626804120), (2, 313402060), (4, 156701030), (5, 125360824), (8, 78350515), (10, 62680412), (20, 31340206), (40, 15670103), (43, 14576840), (86, 7288420), (172, 3644210), (215, 2915368), (344, 1822105), (373, 1680440), (430, 1457684), (746, 840220), (860, 728842), (977, 641560), (1492, 420110), (1720, 364421), (1865, 336088), (1954, 320780), (2984, 210055), (3730, 168044), (3908, 160390), (4885, 128312), (7460, 84022), (7816, 80195), (9770, 64156), (14920, 42011), (16039, 39080), (19540, 32078)]