20500080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{373}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 63998880

約数和(自身を除く): 43498800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 229, 240, 373, 458, 687, 746, 916, 1119, 1145, 1374, 1492, 1832, 1865, 2238, 2290, 2748, 2984, 3435, 3664, 3730, 4476, 4580, 5496, 5595, 5968, 6870, 7460, 8952, 9160, 10992, 11190, 13740, 14920, 17904, 18320, 22380, 27480, 29840, 44760, 54960, 85417, 89520, 170834, 256251, 341668, 427085, 512502, 683336, 854170, 1025004, 1281255, 1366672, 1708340, 2050008, 2562510, 3416680, 4100016, 5125020, 6833360, 10250040, 20500080]

約数ペア:

[(1, 20500080), (2, 10250040), (3, 6833360), (4, 5125020), (5, 4100016), (6, 3416680), (8, 2562510), (10, 2050008), (12, 1708340), (15, 1366672), (16, 1281255), (20, 1025004), (24, 854170), (30, 683336), (40, 512502), (48, 427085), (60, 341668), (80, 256251), (120, 170834), (229, 89520), (240, 85417), (373, 54960), (458, 44760), (687, 29840), (746, 27480), (916, 22380), (1119, 18320), (1145, 17904), (1374, 14920), (1492, 13740), (1832, 11190), (1865, 10992), (2238, 9160), (2290, 8952), (2748, 7460), (2984, 6870), (3435, 5968), (3664, 5595), (3730, 5496), (4476, 4580)]