18939375

素因数分解:

$3^2\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 43211168

約数和(自身を除く): 24271793

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 37, 39, 45, 63, 65, 75, 91, 105, 111, 117, 125, 175, 185, 195, 225, 259, 273, 315, 325, 333, 375, 455, 481, 525, 555, 585, 625, 777, 819, 875, 925, 975, 1125, 1295, 1365, 1443, 1575, 1625, 1665, 1875, 2275, 2331, 2405, 2625, 2775, 2925, 3367, 3885, 4095, 4329, 4375, 4625, 4875, 5625, 6475, 6825, 7215, 7875, 8125, 8325, 10101, 11375, 11655, 12025, 13125, 13875, 14625, 16835, 19425, 20475, 21645, 23125, 24375, 30303, 32375, 34125, 36075, 39375, 41625, 50505, 56875, 58275, 60125, 69375, 73125, 84175, 97125, 102375, 108225, 151515, 161875, 170625, 180375, 208125, 252525, 291375, 300625, 420875, 485625, 511875, 541125, 757575, 901875, 1262625, 1456875, 2104375, 2705625, 3787875, 6313125, 18939375]

約数ペア:

[(1, 18939375), (3, 6313125), (5, 3787875), (7, 2705625), (9, 2104375), (13, 1456875), (15, 1262625), (21, 901875), (25, 757575), (35, 541125), (37, 511875), (39, 485625), (45, 420875), (63, 300625), (65, 291375), (75, 252525), (91, 208125), (105, 180375), (111, 170625), (117, 161875), (125, 151515), (175, 108225), (185, 102375), (195, 97125), (225, 84175), (259, 73125), (273, 69375), (315, 60125), (325, 58275), (333, 56875), (375, 50505), (455, 41625), (481, 39375), (525, 36075), (555, 34125), (585, 32375), (625, 30303), (777, 24375), (819, 23125), (875, 21645), (925, 20475), (975, 19425), (1125, 16835), (1295, 14625), (1365, 13875), (1443, 13125), (1575, 12025), (1625, 11655), (1665, 11375), (1875, 10101), (2275, 8325), (2331, 8125), (2405, 7875), (2625, 7215), (2775, 6825), (2925, 6475), (3367, 5625), (3885, 4875), (4095, 4625), (4329, 4375)]