20454525

素因数分解:

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

素因数の和:82

約数の個数: 144

約数和(自身を含む): 48024704

約数和(自身を除く): 27570179

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 37, 39, 45, 63, 65, 75, 81, 91, 105, 111, 117, 135, 175, 185, 189, 195, 225, 243, 259, 273, 315, 325, 333, 351, 405, 455, 481, 525, 555, 567, 585, 675, 777, 819, 925, 945, 975, 999, 1053, 1215, 1295, 1365, 1443, 1575, 1665, 1701, 1755, 2025, 2275, 2331, 2405, 2457, 2775, 2835, 2925, 2997, 3159, 3367, 3885, 4095, 4329, 4725, 4995, 5265, 6075, 6475, 6825, 6993, 7215, 7371, 8325, 8505, 8775, 8991, 10101, 11655, 12025, 12285, 12987, 14175, 14985, 15795, 16835, 19425, 20475, 20979, 21645, 22113, 24975, 26325, 30303, 34965, 36075, 36855, 38961, 42525, 44955, 50505, 58275, 61425, 62937, 64935, 74925, 78975, 84175, 90909, 104895, 108225, 110565, 116883, 151515, 174825, 184275, 194805, 224775, 252525, 272727, 314685, 324675, 454545, 524475, 552825, 584415, 757575, 818181, 974025, 1363635, 1573425, 2272725, 2922075, 4090905, 6818175, 20454525]

約数ペア:

[(1, 20454525), (3, 6818175), (5, 4090905), (7, 2922075), (9, 2272725), (13, 1573425), (15, 1363635), (21, 974025), (25, 818181), (27, 757575), (35, 584415), (37, 552825), (39, 524475), (45, 454545), (63, 324675), (65, 314685), (75, 272727), (81, 252525), (91, 224775), (105, 194805), (111, 184275), (117, 174825), (135, 151515), (175, 116883), (185, 110565), (189, 108225), (195, 104895), (225, 90909), (243, 84175), (259, 78975), (273, 74925), (315, 64935), (325, 62937), (333, 61425), (351, 58275), (405, 50505), (455, 44955), (481, 42525), (525, 38961), (555, 36855), (567, 36075), (585, 34965), (675, 30303), (777, 26325), (819, 24975), (925, 22113), (945, 21645), (975, 20979), (999, 20475), (1053, 19425), (1215, 16835), (1295, 15795), (1365, 14985), (1443, 14175), (1575, 12987), (1665, 12285), (1701, 12025), (1755, 11655), (2025, 10101), (2275, 8991), (2331, 8775), (2405, 8505), (2457, 8325), (2775, 7371), (2835, 7215), (2925, 6993), (2997, 6825), (3159, 6475), (3367, 6075), (3885, 5265), (4095, 4995), (4329, 4725)]