80676880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32531}}^1$

素因数の和:32575

約数の個数: 40

約数和(自身を含む): 193630464

約数和(自身を除く): 112953584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32531, 65062, 130124, 162655, 260248, 325310, 520496, 650620, 1008461, 1301240, 2016922, 2602480, 4033844, 5042305, 8067688, 10084610, 16135376, 20169220, 40338440, 80676880]

約数ペア:

[(1, 80676880), (2, 40338440), (4, 20169220), (5, 16135376), (8, 10084610), (10, 8067688), (16, 5042305), (20, 4033844), (31, 2602480), (40, 2016922), (62, 1301240), (80, 1008461), (124, 650620), (155, 520496), (248, 325310), (310, 260248), (496, 162655), (620, 130124), (1240, 65062), (2480, 32531)]