1311805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 32

約数和(自身を含む): 1928448

約数和(自身を除く): 616643

約数列:

[1, 5, 11, 17, 23, 55, 61, 85, 115, 187, 253, 305, 391, 671, 935, 1037, 1265, 1403, 1955, 3355, 4301, 5185, 7015, 11407, 15433, 21505, 23851, 57035, 77165, 119255, 262361, 1311805]

約数ペア:

[(1, 1311805), (5, 262361), (11, 119255), (17, 77165), (23, 57035), (55, 23851), (61, 21505), (85, 15433), (115, 11407), (187, 7015), (253, 5185), (305, 4301), (391, 3355), (671, 1955), (935, 1403), (1037, 1265)]