18544760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1877}}^1$

素因数の和:1920

約数の個数: 64

約数和(自身を含む): 47325600

約数和(自身を除く): 28780840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1877, 1976, 2470, 3754, 4940, 7508, 9385, 9880, 15016, 18770, 24401, 35663, 37540, 48802, 71326, 75080, 97604, 122005, 142652, 178315, 195208, 244010, 285304, 356630, 463619, 488020, 713260, 927238, 976040, 1426520, 1854476, 2318095, 3708952, 4636190, 9272380, 18544760]

約数ペア:

[(1, 18544760), (2, 9272380), (4, 4636190), (5, 3708952), (8, 2318095), (10, 1854476), (13, 1426520), (19, 976040), (20, 927238), (26, 713260), (38, 488020), (40, 463619), (52, 356630), (65, 285304), (76, 244010), (95, 195208), (104, 178315), (130, 142652), (152, 122005), (190, 97604), (247, 75080), (260, 71326), (380, 48802), (494, 37540), (520, 35663), (760, 24401), (988, 18770), (1235, 15016), (1877, 9880), (1976, 9385), (2470, 7508), (3754, 4940)]