8329720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 21772800

約数和(自身を除く): 13443080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 419, 497, 568, 710, 838, 994, 1420, 1676, 1988, 2095, 2485, 2840, 2933, 3352, 3976, 4190, 4970, 5866, 8380, 9940, 11732, 14665, 16760, 19880, 23464, 29330, 29749, 58660, 59498, 117320, 118996, 148745, 208243, 237992, 297490, 416486, 594980, 832972, 1041215, 1189960, 1665944, 2082430, 4164860, 8329720]

約数ペア:

[(1, 8329720), (2, 4164860), (4, 2082430), (5, 1665944), (7, 1189960), (8, 1041215), (10, 832972), (14, 594980), (20, 416486), (28, 297490), (35, 237992), (40, 208243), (56, 148745), (70, 118996), (71, 117320), (140, 59498), (142, 58660), (280, 29749), (284, 29330), (355, 23464), (419, 19880), (497, 16760), (568, 14665), (710, 11732), (838, 9940), (994, 8380), (1420, 5866), (1676, 4970), (1988, 4190), (2095, 3976), (2485, 3352), (2840, 2933)]