13502780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 29647296

約数和(自身を除く): 16144516

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 257, 284, 355, 370, 514, 710, 740, 1028, 1285, 1420, 2570, 2627, 5140, 5254, 9509, 10508, 13135, 18247, 19018, 26270, 36494, 38036, 47545, 52540, 72988, 91235, 95090, 182470, 190180, 364940, 675139, 1350278, 2700556, 3375695, 6751390, 13502780]

約数ペア:

[(1, 13502780), (2, 6751390), (4, 3375695), (5, 2700556), (10, 1350278), (20, 675139), (37, 364940), (71, 190180), (74, 182470), (142, 95090), (148, 91235), (185, 72988), (257, 52540), (284, 47545), (355, 38036), (370, 36494), (514, 26270), (710, 19018), (740, 18247), (1028, 13135), (1285, 10508), (1420, 9509), (2570, 5254), (2627, 5140)]