15665840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11519}}^1$

素因数の和:11549

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 22903120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 11519, 23038, 46076, 57595, 92152, 115190, 184304, 195823, 230380, 391646, 460760, 783292, 921520, 979115, 1566584, 1958230, 3133168, 3916460, 7832920, 15665840]

約数ペア:

[(1, 15665840), (2, 7832920), (4, 3916460), (5, 3133168), (8, 1958230), (10, 1566584), (16, 979115), (17, 921520), (20, 783292), (34, 460760), (40, 391646), (68, 230380), (80, 195823), (85, 184304), (136, 115190), (170, 92152), (272, 57595), (340, 46076), (680, 23038), (1360, 11519)]