28978430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{1319}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 56548800

約数和(自身を除く): 27570370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1319, 1690, 2197, 2638, 4394, 6595, 10985, 13190, 17147, 21970, 34294, 85735, 171470, 222911, 445822, 1114555, 2229110, 2897843, 5795686, 14489215, 28978430]

約数ペア:

[(1, 28978430), (2, 14489215), (5, 5795686), (10, 2897843), (13, 2229110), (26, 1114555), (65, 445822), (130, 222911), (169, 171470), (338, 85735), (845, 34294), (1319, 21970), (1690, 17147), (2197, 13190), (2638, 10985), (4394, 6595)]