18260960

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1871}}^1$

素因数の和:1947

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 25611232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1871, 1952, 2440, 3742, 4880, 7484, 9355, 9760, 14968, 18710, 29936, 37420, 59872, 74840, 114131, 149680, 228262, 299360, 456524, 570655, 913048, 1141310, 1826096, 2282620, 3652192, 4565240, 9130480, 18260960]

約数ペア:

[(1, 18260960), (2, 9130480), (4, 4565240), (5, 3652192), (8, 2282620), (10, 1826096), (16, 1141310), (20, 913048), (32, 570655), (40, 456524), (61, 299360), (80, 228262), (122, 149680), (160, 114131), (244, 74840), (305, 59872), (488, 37420), (610, 29936), (976, 18710), (1220, 14968), (1871, 9760), (1952, 9355), (2440, 7484), (3742, 4880)]