219951875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 340091136

約数和(自身を除く): 120139261

約数列:

[1, 5, 11, 13, 23, 25, 55, 65, 107, 115, 125, 143, 253, 275, 299, 325, 535, 575, 625, 715, 1177, 1265, 1375, 1391, 1495, 1625, 2461, 2675, 2875, 3289, 3575, 5885, 6325, 6875, 6955, 7475, 8125, 12305, 13375, 14375, 15301, 16445, 17875, 27071, 29425, 31625, 31993, 34775, 37375, 61525, 66875, 76505, 82225, 89375, 135355, 147125, 158125, 159965, 173875, 186875, 307625, 351923, 382525, 411125, 676775, 735625, 799825, 869375, 1538125, 1759615, 1912625, 2055625, 3383875, 3999125, 8798075, 9563125, 16919375, 19995625, 43990375, 219951875]

約数ペア:

[(1, 219951875), (5, 43990375), (11, 19995625), (13, 16919375), (23, 9563125), (25, 8798075), (55, 3999125), (65, 3383875), (107, 2055625), (115, 1912625), (125, 1759615), (143, 1538125), (253, 869375), (275, 799825), (299, 735625), (325, 676775), (535, 411125), (575, 382525), (625, 351923), (715, 307625), (1177, 186875), (1265, 173875), (1375, 159965), (1391, 158125), (1495, 147125), (1625, 135355), (2461, 89375), (2675, 82225), (2875, 76505), (3289, 66875), (3575, 61525), (5885, 37375), (6325, 34775), (6875, 31993), (6955, 31625), (7475, 29425), (8125, 27071), (12305, 17875), (13375, 16445), (14375, 15301)]