64838380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2999}}^1$

素因数の和:3078

約数の個数: 48

約数和(自身を含む): 145152000

約数和(自身を除く): 80313620

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 2999, 4324, 5405, 5998, 10810, 11996, 14995, 21620, 29990, 59980, 68977, 137954, 140953, 275908, 281906, 344885, 563812, 689770, 704765, 1379540, 1409530, 2819060, 3241919, 6483838, 12967676, 16209595, 32419190, 64838380]

約数ペア:

[(1, 64838380), (2, 32419190), (4, 16209595), (5, 12967676), (10, 6483838), (20, 3241919), (23, 2819060), (46, 1409530), (47, 1379540), (92, 704765), (94, 689770), (115, 563812), (188, 344885), (230, 281906), (235, 275908), (460, 140953), (470, 137954), (940, 68977), (1081, 59980), (2162, 29990), (2999, 21620), (4324, 14995), (5405, 11996), (5998, 10810)]