128580491390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{398341}}^1$

素因数の和:398565

約数の個数: 48

約数和(自身を含む): 251930601216

約数和(自身を除く): 123350109826

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 191, 338, 382, 845, 955, 1690, 1910, 2483, 4966, 12415, 24830, 32279, 64558, 161395, 322790, 398341, 796682, 1991705, 3983410, 5178433, 10356866, 25892165, 51784330, 67319629, 76083131, 134639258, 152166262, 336598145, 380415655, 673196290, 760831310, 989080703, 1978161406, 4945403515, 9890807030, 12858049139, 25716098278, 64290245695, 128580491390]

約数ペア:

[(1, 128580491390), (2, 64290245695), (5, 25716098278), (10, 12858049139), (13, 9890807030), (26, 4945403515), (65, 1978161406), (130, 989080703), (169, 760831310), (191, 673196290), (338, 380415655), (382, 336598145), (845, 152166262), (955, 134639258), (1690, 76083131), (1910, 67319629), (2483, 51784330), (4966, 25892165), (12415, 10356866), (24830, 5178433), (32279, 3983410), (64558, 1991705), (161395, 796682), (322790, 398341)]