728457520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{185831}}^1$

素因数の和:185858

約数の個数: 60

約数和(自身を含む): 1970190864

約数和(自身を除く): 1241733344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 185831, 371662, 743324, 929155, 1300817, 1486648, 1858310, 2601634, 2973296, 3716620, 5203268, 6504085, 7433240, 9105719, 10406536, 13008170, 14866480, 18211438, 20813072, 26016340, 36422876, 45528595, 52032680, 72845752, 91057190, 104065360, 145691504, 182114380, 364228760, 728457520]

約数ペア:

[(1, 728457520), (2, 364228760), (4, 182114380), (5, 145691504), (7, 104065360), (8, 91057190), (10, 72845752), (14, 52032680), (16, 45528595), (20, 36422876), (28, 26016340), (35, 20813072), (40, 18211438), (49, 14866480), (56, 13008170), (70, 10406536), (80, 9105719), (98, 7433240), (112, 6504085), (140, 5203268), (196, 3716620), (245, 2973296), (280, 2601634), (392, 1858310), (490, 1486648), (560, 1300817), (784, 929155), (980, 743324), (1960, 371662), (3920, 185831)]