787909720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{21341}}^1$

素因数の和:21436

約数の個数: 64

約数和(自身を含む): 1936146240

約数和(自身を除く): 1148236520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 923, 1420, 1846, 2840, 3692, 4615, 7384, 9230, 18460, 21341, 36920, 42682, 85364, 106705, 170728, 213410, 277433, 426820, 554866, 853640, 1109732, 1387165, 1515211, 2219464, 2774330, 3030422, 5548660, 6060844, 7576055, 11097320, 12121688, 15152110, 19697743, 30304220, 39395486, 60608440, 78790972, 98488715, 157581944, 196977430, 393954860, 787909720]

約数ペア:

[(1, 787909720), (2, 393954860), (4, 196977430), (5, 157581944), (8, 98488715), (10, 78790972), (13, 60608440), (20, 39395486), (26, 30304220), (40, 19697743), (52, 15152110), (65, 12121688), (71, 11097320), (104, 7576055), (130, 6060844), (142, 5548660), (260, 3030422), (284, 2774330), (355, 2219464), (520, 1515211), (568, 1387165), (710, 1109732), (923, 853640), (1420, 554866), (1846, 426820), (2840, 277433), (3692, 213410), (4615, 170728), (7384, 106705), (9230, 85364), (18460, 42682), (21341, 36920)]