20408702948

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{166027}}^1$

素因数の和:166499

約数の個数: 24

約数和(自身を含む): 36260515200

約数和(自身を除く): 15851812252

約数列:

[1, 2, 4, 79, 158, 316, 389, 778, 1556, 30731, 61462, 122924, 166027, 332054, 664108, 13116133, 26232266, 52464532, 64584503, 129169006, 258338012, 5102175737, 10204351474, 20408702948]

約数ペア:

[(1, 20408702948), (2, 10204351474), (4, 5102175737), (79, 258338012), (158, 129169006), (316, 64584503), (389, 52464532), (778, 26232266), (1556, 13116133), (30731, 664108), (61462, 332054), (122924, 166027)]