12995440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2737

約数の個数: 40

約数和(自身を含む): 30721248

約数和(自身を除く): 17725808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2663, 4880, 5326, 10652, 13315, 21304, 26630, 42608, 53260, 106520, 162443, 213040, 324886, 649772, 812215, 1299544, 1624430, 2599088, 3248860, 6497720, 12995440]

約数ペア:

[(1, 12995440), (2, 6497720), (4, 3248860), (5, 2599088), (8, 1624430), (10, 1299544), (16, 812215), (20, 649772), (40, 324886), (61, 213040), (80, 162443), (122, 106520), (244, 53260), (305, 42608), (488, 26630), (610, 21304), (976, 13315), (1220, 10652), (2440, 5326), (2663, 4880)]