19617040

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{647}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 45800640

約数和(自身を除く): 26183600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 647, 758, 1294, 1516, 1895, 2588, 3032, 3235, 3790, 5176, 6064, 6470, 7580, 10352, 12940, 15160, 25880, 30320, 51760, 245213, 490426, 980852, 1226065, 1961704, 2452130, 3923408, 4904260, 9808520, 19617040]

約数ペア:

[(1, 19617040), (2, 9808520), (4, 4904260), (5, 3923408), (8, 2452130), (10, 1961704), (16, 1226065), (20, 980852), (40, 490426), (80, 245213), (379, 51760), (647, 30320), (758, 25880), (1294, 15160), (1516, 12940), (1895, 10352), (2588, 7580), (3032, 6470), (3235, 6064), (3790, 5176)]