1818804560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1\times {\mathrm{827}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 4354114176

約数和(自身を除く): 2535309616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 743, 827, 1480, 1486, 1654, 2960, 2972, 3308, 3715, 4135, 5944, 6616, 7430, 8270, 11888, 13232, 14860, 16540, 27491, 29720, 30599, 33080, 54982, 59440, 61198, 66160, 109964, 122396, 137455, 152995, 219928, 244792, 274910, 305990, 439856, 489584, 549820, 611980, 614461, 1099640, 1223960, 1228922, 2199280, 2447920, 2457844, 3072305, 4915688, 6144610, 9831376, 12289220, 22735057, 24578440, 45470114, 49156880, 90940228, 113675285, 181880456, 227350570, 363760912, 454701140, 909402280, 1818804560]

約数ペア:

[(1, 1818804560), (2, 909402280), (4, 454701140), (5, 363760912), (8, 227350570), (10, 181880456), (16, 113675285), (20, 90940228), (37, 49156880), (40, 45470114), (74, 24578440), (80, 22735057), (148, 12289220), (185, 9831376), (296, 6144610), (370, 4915688), (592, 3072305), (740, 2457844), (743, 2447920), (827, 2199280), (1480, 1228922), (1486, 1223960), (1654, 1099640), (2960, 614461), (2972, 611980), (3308, 549820), (3715, 489584), (4135, 439856), (5944, 305990), (6616, 274910), (7430, 244792), (8270, 219928), (11888, 152995), (13232, 137455), (14860, 122396), (16540, 109964), (27491, 66160), (29720, 61198), (30599, 59440), (33080, 54982)]