15171940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{353}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 36634752

約数和(自身を除く): 21462812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 353, 614, 706, 1228, 1412, 1535, 1765, 2149, 2471, 3070, 3530, 4298, 4942, 6140, 7060, 8596, 9884, 10745, 12355, 21490, 24710, 42980, 49420, 108371, 216742, 433484, 541855, 758597, 1083710, 1517194, 2167420, 3034388, 3792985, 7585970, 15171940]

約数ペア:

[(1, 15171940), (2, 7585970), (4, 3792985), (5, 3034388), (7, 2167420), (10, 1517194), (14, 1083710), (20, 758597), (28, 541855), (35, 433484), (70, 216742), (140, 108371), (307, 49420), (353, 42980), (614, 24710), (706, 21490), (1228, 12355), (1412, 10745), (1535, 9884), (1765, 8596), (2149, 7060), (2471, 6140), (3070, 4942), (3530, 4298)]