20648030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9343}}^1$

素因数の和:9380

約数の個数: 32

約数和(自身を含む): 42384384

約数和(自身を除く): 21736354

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9343, 18686, 46715, 93430, 121459, 158831, 242918, 317662, 607295, 794155, 1214590, 1588310, 2064803, 4129606, 10324015, 20648030]

約数ペア:

[(1, 20648030), (2, 10324015), (5, 4129606), (10, 2064803), (13, 1588310), (17, 1214590), (26, 794155), (34, 607295), (65, 317662), (85, 242918), (130, 158831), (170, 121459), (221, 93430), (442, 46715), (1105, 18686), (2210, 9343)]