81609948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5309}}^1$

素因数の和:5387

約数の個数: 72

約数和(自身を含む): 239672160

約数和(自身を除く): 158062212

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 84, 122, 126, 183, 244, 252, 366, 427, 549, 732, 854, 1098, 1281, 1708, 2196, 2562, 3843, 5124, 5309, 7686, 10618, 15372, 15927, 21236, 31854, 37163, 47781, 63708, 74326, 95562, 111489, 148652, 191124, 222978, 323849, 334467, 445956, 647698, 668934, 971547, 1295396, 1337868, 1943094, 2266943, 2914641, 3886188, 4533886, 5829282, 6800829, 9067772, 11658564, 13601658, 20402487, 27203316, 40804974, 81609948]

約数ペア:

[(1, 81609948), (2, 40804974), (3, 27203316), (4, 20402487), (6, 13601658), (7, 11658564), (9, 9067772), (12, 6800829), (14, 5829282), (18, 4533886), (21, 3886188), (28, 2914641), (36, 2266943), (42, 1943094), (61, 1337868), (63, 1295396), (84, 971547), (122, 668934), (126, 647698), (183, 445956), (244, 334467), (252, 323849), (366, 222978), (427, 191124), (549, 148652), (732, 111489), (854, 95562), (1098, 74326), (1281, 63708), (1708, 47781), (2196, 37163), (2562, 31854), (3843, 21236), (5124, 15927), (5309, 15372), (7686, 10618)]