618974240

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{7879}}^1$

素因数の和:8385

約数の個数: 48

約数和(自身を含む): 1465490880

約数和(自身を除く): 846516640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1964, 2455, 3928, 4910, 7856, 7879, 9820, 15712, 15758, 19640, 31516, 39280, 39395, 63032, 78560, 78790, 126064, 157580, 252128, 315160, 630320, 1260640, 3868589, 7737178, 15474356, 19342945, 30948712, 38685890, 61897424, 77371780, 123794848, 154743560, 309487120, 618974240]

約数ペア:

[(1, 618974240), (2, 309487120), (4, 154743560), (5, 123794848), (8, 77371780), (10, 61897424), (16, 38685890), (20, 30948712), (32, 19342945), (40, 15474356), (80, 7737178), (160, 3868589), (491, 1260640), (982, 630320), (1964, 315160), (2455, 252128), (3928, 157580), (4910, 126064), (7856, 78790), (7879, 78560), (9820, 63032), (15712, 39395), (15758, 39280), (19640, 31516)]