20502495

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 38761632

約数和(自身を除く): 18259137

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 101, 117, 195, 303, 347, 505, 585, 909, 1041, 1313, 1515, 1735, 3123, 3939, 4511, 4545, 5205, 6565, 11817, 13533, 15615, 19695, 22555, 35047, 40599, 59085, 67665, 105141, 175235, 202995, 315423, 455611, 525705, 1366833, 1577115, 2278055, 4100499, 6834165, 20502495]

約数ペア:

[(1, 20502495), (3, 6834165), (5, 4100499), (9, 2278055), (13, 1577115), (15, 1366833), (39, 525705), (45, 455611), (65, 315423), (101, 202995), (117, 175235), (195, 105141), (303, 67665), (347, 59085), (505, 40599), (585, 35047), (909, 22555), (1041, 19695), (1313, 15615), (1515, 13533), (1735, 11817), (3123, 6565), (3939, 5205), (4511, 4545)]