78110820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1061}}^1$

素因数の和:1485

約数の個数: 72

約数和(自身を含む): 237739320

約数和(自身を除く): 159628500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 1061, 1227, 1636, 2045, 2122, 2454, 3183, 3681, 4090, 4244, 4908, 5305, 6135, 6366, 7362, 8180, 9549, 10610, 12270, 12732, 14724, 15915, 18405, 19098, 21220, 24540, 31830, 36810, 38196, 47745, 63660, 73620, 95490, 190980, 433949, 867898, 1301847, 1735796, 2169745, 2603694, 3905541, 4339490, 5207388, 6509235, 7811082, 8678980, 13018470, 15622164, 19527705, 26036940, 39055410, 78110820]

約数ペア:

[(1, 78110820), (2, 39055410), (3, 26036940), (4, 19527705), (5, 15622164), (6, 13018470), (9, 8678980), (10, 7811082), (12, 6509235), (15, 5207388), (18, 4339490), (20, 3905541), (30, 2603694), (36, 2169745), (45, 1735796), (60, 1301847), (90, 867898), (180, 433949), (409, 190980), (818, 95490), (1061, 73620), (1227, 63660), (1636, 47745), (2045, 38196), (2122, 36810), (2454, 31830), (3183, 24540), (3681, 21220), (4090, 19098), (4244, 18405), (4908, 15915), (5305, 14724), (6135, 12732), (6366, 12270), (7362, 10610), (8180, 9549)]