39991664

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1137

約数の個数: 40

約数和(自身を含む): 81676320

約数和(自身を除く): 41684656

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 109, 184, 218, 368, 436, 872, 997, 1744, 1994, 2507, 3988, 5014, 7976, 10028, 15952, 20056, 22931, 40112, 45862, 91724, 108673, 183448, 217346, 366896, 434692, 869384, 1738768, 2499479, 4998958, 9997916, 19995832, 39991664]

約数ペア:

[(1, 39991664), (2, 19995832), (4, 9997916), (8, 4998958), (16, 2499479), (23, 1738768), (46, 869384), (92, 434692), (109, 366896), (184, 217346), (218, 183448), (368, 108673), (436, 91724), (872, 45862), (997, 40112), (1744, 22931), (1994, 20056), (2507, 15952), (3988, 10028), (5014, 7976)]