19767760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2399}}^1$

素因数の和:2515

約数の個数: 40

約数和(自身を含む): 46425600

約数和(自身を除く): 26657840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2399, 4120, 4798, 8240, 9596, 11995, 19192, 23990, 38384, 47980, 95960, 191920, 247097, 494194, 988388, 1235485, 1976776, 2470970, 3953552, 4941940, 9883880, 19767760]

約数ペア:

[(1, 19767760), (2, 9883880), (4, 4941940), (5, 3953552), (8, 2470970), (10, 1976776), (16, 1235485), (20, 988388), (40, 494194), (80, 247097), (103, 191920), (206, 95960), (412, 47980), (515, 38384), (824, 23990), (1030, 19192), (1648, 11995), (2060, 9596), (2399, 8240), (4120, 4798)]