8351980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{353}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 21766752

約数和(自身を除く): 13414772

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 353, 364, 455, 676, 706, 845, 910, 1183, 1412, 1690, 1765, 1820, 2366, 2471, 3380, 3530, 4589, 4732, 4942, 5915, 7060, 9178, 9884, 11830, 12355, 18356, 22945, 23660, 24710, 32123, 45890, 49420, 59657, 64246, 91780, 119314, 128492, 160615, 238628, 298285, 321230, 417599, 596570, 642460, 835198, 1193140, 1670396, 2087995, 4175990, 8351980]

約数ペア:

[(1, 8351980), (2, 4175990), (4, 2087995), (5, 1670396), (7, 1193140), (10, 835198), (13, 642460), (14, 596570), (20, 417599), (26, 321230), (28, 298285), (35, 238628), (52, 160615), (65, 128492), (70, 119314), (91, 91780), (130, 64246), (140, 59657), (169, 49420), (182, 45890), (260, 32123), (338, 24710), (353, 23660), (364, 22945), (455, 18356), (676, 12355), (706, 11830), (845, 9884), (910, 9178), (1183, 7060), (1412, 5915), (1690, 4942), (1765, 4732), (1820, 4589), (2366, 3530), (2471, 3380)]