80020620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1061}}^1$

素因数の和:1495

約数の個数: 72

約数和(自身を含む): 243537840

約数和(自身を除く): 163517220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 838, 1061, 1257, 1676, 2095, 2122, 2514, 3183, 3771, 4190, 4244, 5028, 5305, 6285, 6366, 7542, 8380, 9549, 10610, 12570, 12732, 15084, 15915, 18855, 19098, 21220, 25140, 31830, 37710, 38196, 47745, 63660, 75420, 95490, 190980, 444559, 889118, 1333677, 1778236, 2222795, 2667354, 4001031, 4445590, 5334708, 6668385, 8002062, 8891180, 13336770, 16004124, 20005155, 26673540, 40010310, 80020620]

約数ペア:

[(1, 80020620), (2, 40010310), (3, 26673540), (4, 20005155), (5, 16004124), (6, 13336770), (9, 8891180), (10, 8002062), (12, 6668385), (15, 5334708), (18, 4445590), (20, 4001031), (30, 2667354), (36, 2222795), (45, 1778236), (60, 1333677), (90, 889118), (180, 444559), (419, 190980), (838, 95490), (1061, 75420), (1257, 63660), (1676, 47745), (2095, 38196), (2122, 37710), (2514, 31830), (3183, 25140), (3771, 21220), (4190, 19098), (4244, 18855), (5028, 15915), (5305, 15084), (6285, 12732), (6366, 12570), (7542, 10610), (8380, 9549)]