159881800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61493}}^1$

素因数の和:61522

約数の個数: 48

約数和(自身を含む): 400325940

約数和(自身を除く): 240444140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 61493, 122986, 245972, 307465, 491944, 614930, 799409, 1229860, 1537325, 1598818, 2459720, 3074650, 3197636, 3997045, 6149300, 6395272, 7994090, 12298600, 15988180, 19985225, 31976360, 39970450, 79940900, 159881800]

約数ペア:

[(1, 159881800), (2, 79940900), (4, 39970450), (5, 31976360), (8, 19985225), (10, 15988180), (13, 12298600), (20, 7994090), (25, 6395272), (26, 6149300), (40, 3997045), (50, 3197636), (52, 3074650), (65, 2459720), (100, 1598818), (104, 1537325), (130, 1229860), (200, 799409), (260, 614930), (325, 491944), (520, 307465), (650, 245972), (1300, 122986), (2600, 61493)]