487999878

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2117

約数の個数: 64

約数和(自身を含む): 1071360000

約数和(自身を除く): 583360122

約数列:

[1, 2, 3, 6, 23, 29, 46, 58, 61, 69, 87, 122, 138, 174, 183, 366, 667, 1334, 1403, 1769, 1999, 2001, 2806, 3538, 3998, 4002, 4209, 5307, 5997, 8418, 10614, 11994, 40687, 45977, 57971, 81374, 91954, 115942, 121939, 122061, 137931, 173913, 243878, 244122, 275862, 347826, 365817, 731634, 1333333, 2666666, 2804597, 3536231, 3999999, 5609194, 7072462, 7999998, 8413791, 10608693, 16827582, 21217386, 81333313, 162666626, 243999939, 487999878]

約数ペア:

[(1, 487999878), (2, 243999939), (3, 162666626), (6, 81333313), (23, 21217386), (29, 16827582), (46, 10608693), (58, 8413791), (61, 7999998), (69, 7072462), (87, 5609194), (122, 3999999), (138, 3536231), (174, 2804597), (183, 2666666), (366, 1333333), (667, 731634), (1334, 365817), (1403, 347826), (1769, 275862), (1999, 244122), (2001, 243878), (2806, 173913), (3538, 137931), (3998, 122061), (4002, 121939), (4209, 115942), (5307, 91954), (5997, 81374), (8418, 57971), (10614, 45977), (11994, 40687)]