20778855524

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1123}}^1\times {\mathrm{1409}}^1$

素因数の和:2617

約数の個数: 72

約数和(自身を含む): 42999878880

約数和(自身を除く): 22221023356

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1123, 1409, 1876, 2246, 2818, 3283, 4492, 5636, 6566, 7861, 9863, 13132, 15722, 19726, 31444, 39452, 55027, 69041, 75241, 94403, 110054, 138082, 150482, 188806, 220108, 276164, 300964, 377612, 526687, 660821, 1053374, 1321642, 1582307, 2106748, 2643284, 3164614, 3686809, 4625747, 6329228, 7373618, 9251494, 11076149, 14747236, 18502988, 22152298, 44304596, 77533043, 106014569, 155066086, 212029138, 310132172, 424058276, 742101983, 1484203966, 2968407932, 5194713881, 10389427762, 20778855524]

約数ペア:

[(1, 20778855524), (2, 10389427762), (4, 5194713881), (7, 2968407932), (14, 1484203966), (28, 742101983), (49, 424058276), (67, 310132172), (98, 212029138), (134, 155066086), (196, 106014569), (268, 77533043), (469, 44304596), (938, 22152298), (1123, 18502988), (1409, 14747236), (1876, 11076149), (2246, 9251494), (2818, 7373618), (3283, 6329228), (4492, 4625747), (5636, 3686809), (6566, 3164614), (7861, 2643284), (9863, 2106748), (13132, 1582307), (15722, 1321642), (19726, 1053374), (31444, 660821), (39452, 526687), (55027, 377612), (69041, 300964), (75241, 276164), (94403, 220108), (110054, 188806), (138082, 150482)]