639465720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{15269}}^1$

素因数の和:15632

約数の個数: 64

約数和(自身を含む): 1924020000

約数和(自身を除く): 1284554280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 349, 698, 1047, 1396, 1745, 2094, 2792, 3490, 4188, 5235, 6980, 8376, 10470, 13960, 15269, 20940, 30538, 41880, 45807, 61076, 76345, 91614, 122152, 152690, 183228, 229035, 305380, 366456, 458070, 610760, 916140, 1832280, 5328881, 10657762, 15986643, 21315524, 26644405, 31973286, 42631048, 53288810, 63946572, 79933215, 106577620, 127893144, 159866430, 213155240, 319732860, 639465720]

約数ペア:

[(1, 639465720), (2, 319732860), (3, 213155240), (4, 159866430), (5, 127893144), (6, 106577620), (8, 79933215), (10, 63946572), (12, 53288810), (15, 42631048), (20, 31973286), (24, 26644405), (30, 21315524), (40, 15986643), (60, 10657762), (120, 5328881), (349, 1832280), (698, 916140), (1047, 610760), (1396, 458070), (1745, 366456), (2094, 305380), (2792, 229035), (3490, 183228), (4188, 152690), (5235, 122152), (6980, 91614), (8376, 76345), (10470, 61076), (13960, 45807), (15269, 41880), (20940, 30538)]