639352680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{171869}}^1$

素因数の和:171914

約数の個数: 64

約数和(自身を含む): 1979942400

約数和(自身を除く): 1340589720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 171869, 343738, 515607, 687476, 859345, 1031214, 1374952, 1718690, 2062428, 2578035, 3437380, 4124856, 5156070, 5327939, 6874760, 10312140, 10655878, 15983817, 20624280, 21311756, 26639695, 31967634, 42623512, 53279390, 63935268, 79919085, 106558780, 127870536, 159838170, 213117560, 319676340, 639352680]

約数ペア:

[(1, 639352680), (2, 319676340), (3, 213117560), (4, 159838170), (5, 127870536), (6, 106558780), (8, 79919085), (10, 63935268), (12, 53279390), (15, 42623512), (20, 31967634), (24, 26639695), (30, 21311756), (31, 20624280), (40, 15983817), (60, 10655878), (62, 10312140), (93, 6874760), (120, 5327939), (124, 5156070), (155, 4124856), (186, 3437380), (248, 2578035), (310, 2062428), (372, 1718690), (465, 1374952), (620, 1031214), (744, 859345), (930, 687476), (1240, 515607), (1860, 343738), (3720, 171869)]