19117240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6547}}^1$

素因数の和:6631

約数の個数: 32

約数和(自身を含む): 43609680

約数和(自身を除く): 24492440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6547, 13094, 26188, 32735, 52376, 65470, 130940, 261880, 477931, 955862, 1911724, 2389655, 3823448, 4779310, 9558620, 19117240]

約数ペア:

[(1, 19117240), (2, 9558620), (4, 4779310), (5, 3823448), (8, 2389655), (10, 1911724), (20, 955862), (40, 477931), (73, 261880), (146, 130940), (292, 65470), (365, 52376), (584, 32735), (730, 26188), (1460, 13094), (2920, 6547)]