81819108

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7919}}^1$

素因数の和:7977

約数の個数: 72

約数和(自身を含む): 242161920

約数和(自身を除く): 160342812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 2583, 3444, 5166, 7919, 10332, 15838, 23757, 31676, 47514, 55433, 71271, 95028, 110866, 142542, 166299, 221732, 285084, 324679, 332598, 498897, 649358, 665196, 974037, 997794, 1298716, 1948074, 1995588, 2272753, 2922111, 3896148, 4545506, 5844222, 6818259, 9091012, 11688444, 13636518, 20454777, 27273036, 40909554, 81819108]

約数ペア:

[(1, 81819108), (2, 40909554), (3, 27273036), (4, 20454777), (6, 13636518), (7, 11688444), (9, 9091012), (12, 6818259), (14, 5844222), (18, 4545506), (21, 3896148), (28, 2922111), (36, 2272753), (41, 1995588), (42, 1948074), (63, 1298716), (82, 997794), (84, 974037), (123, 665196), (126, 649358), (164, 498897), (246, 332598), (252, 324679), (287, 285084), (369, 221732), (492, 166299), (574, 142542), (738, 110866), (861, 95028), (1148, 71271), (1476, 55433), (1722, 47514), (2583, 31676), (3444, 23757), (5166, 15838), (7919, 10332)]