18319520

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1877}}^1$

素因数の和:1953

約数の個数: 48

約数和(自身を含む): 44012808

約数和(自身を除く): 25693288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1877, 1952, 2440, 3754, 4880, 7508, 9385, 9760, 15016, 18770, 30032, 37540, 60064, 75080, 114497, 150160, 228994, 300320, 457988, 572485, 915976, 1144970, 1831952, 2289940, 3663904, 4579880, 9159760, 18319520]

約数ペア:

[(1, 18319520), (2, 9159760), (4, 4579880), (5, 3663904), (8, 2289940), (10, 1831952), (16, 1144970), (20, 915976), (32, 572485), (40, 457988), (61, 300320), (80, 228994), (122, 150160), (160, 114497), (244, 75080), (305, 60064), (488, 37540), (610, 30032), (976, 18770), (1220, 15016), (1877, 9760), (1952, 9385), (2440, 7508), (3754, 4880)]