279996405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{23539}}^1$

素因数の和:23621

約数の個数: 32

約数和(自身を含む): 490385280

約数和(自身を除く): 210388875

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 2379, 3965, 11895, 23539, 70617, 117695, 306007, 353085, 918021, 1435879, 1530035, 4307637, 4590105, 7179395, 18666427, 21538185, 55999281, 93332135, 279996405]

約数ペア:

[(1, 279996405), (3, 93332135), (5, 55999281), (13, 21538185), (15, 18666427), (39, 7179395), (61, 4590105), (65, 4307637), (183, 1530035), (195, 1435879), (305, 918021), (793, 353085), (915, 306007), (2379, 117695), (3965, 70617), (11895, 23539)]