19354840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28463}}^1$

素因数の和:28491

約数の個数: 32

約数和(自身を含む): 46111680

約数和(自身を除く): 26756840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28463, 56926, 113852, 142315, 227704, 284630, 483871, 569260, 967742, 1138520, 1935484, 2419355, 3870968, 4838710, 9677420, 19354840]

約数ペア:

[(1, 19354840), (2, 9677420), (4, 4838710), (5, 3870968), (8, 2419355), (10, 1935484), (17, 1138520), (20, 967742), (34, 569260), (40, 483871), (68, 284630), (85, 227704), (136, 142315), (170, 113852), (340, 56926), (680, 28463)]