19480500

素因数分解:

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

素因数の和:81

約数の個数: 240

約数和(自身を含む): 70294224

約数和(自身を除く): 50813724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 37, 39, 45, 50, 52, 54, 60, 65, 74, 75, 78, 81, 90, 100, 108, 111, 117, 125, 130, 135, 148, 150, 156, 162, 180, 185, 195, 222, 225, 234, 250, 260, 270, 300, 324, 325, 333, 351, 370, 375, 390, 405, 444, 450, 468, 481, 500, 540, 555, 585, 650, 666, 675, 702, 740, 750, 780, 810, 900, 925, 962, 975, 999, 1053, 1110, 1125, 1170, 1300, 1332, 1350, 1404, 1443, 1500, 1620, 1625, 1665, 1755, 1850, 1924, 1950, 1998, 2025, 2106, 2220, 2250, 2340, 2405, 2700, 2775, 2886, 2925, 2997, 3250, 3330, 3375, 3510, 3700, 3900, 3996, 4050, 4212, 4329, 4500, 4625, 4810, 4875, 4995, 5265, 5550, 5772, 5850, 5994, 6500, 6660, 6750, 7020, 7215, 8100, 8325, 8658, 8775, 9250, 9620, 9750, 9990, 10125, 10530, 11100, 11700, 11988, 12025, 12987, 13500, 13875, 14430, 14625, 14985, 16650, 17316, 17550, 18500, 19500, 19980, 20250, 21060, 21645, 24050, 24975, 25974, 26325, 27750, 28860, 29250, 29970, 33300, 35100, 36075, 38961, 40500, 41625, 43290, 43875, 48100, 49950, 51948, 52650, 55500, 58500, 59940, 60125, 64935, 72150, 74925, 77922, 83250, 86580, 87750, 99900, 105300, 108225, 120250, 124875, 129870, 131625, 144300, 149850, 155844, 166500, 175500, 180375, 194805, 216450, 240500, 249750, 259740, 263250, 299700, 324675, 360750, 374625, 389610, 432900, 499500, 526500, 541125, 649350, 721500, 749250, 779220, 974025, 1082250, 1298700, 1498500, 1623375, 1948050, 2164500, 3246750, 3896100, 4870125, 6493500, 9740250, 19480500]

約数ペア:

[(1, 19480500), (2, 9740250), (3, 6493500), (4, 4870125), (5, 3896100), (6, 3246750), (9, 2164500), (10, 1948050), (12, 1623375), (13, 1498500), (15, 1298700), (18, 1082250), (20, 974025), (25, 779220), (26, 749250), (27, 721500), (30, 649350), (36, 541125), (37, 526500), (39, 499500), (45, 432900), (50, 389610), (52, 374625), (54, 360750), (60, 324675), (65, 299700), (74, 263250), (75, 259740), (78, 249750), (81, 240500), (90, 216450), (100, 194805), (108, 180375), (111, 175500), (117, 166500), (125, 155844), (130, 149850), (135, 144300), (148, 131625), (150, 129870), (156, 124875), (162, 120250), (180, 108225), (185, 105300), (195, 99900), (222, 87750), (225, 86580), (234, 83250), (250, 77922), (260, 74925), (270, 72150), (300, 64935), (324, 60125), (325, 59940), (333, 58500), (351, 55500), (370, 52650), (375, 51948), (390, 49950), (405, 48100), (444, 43875), (450, 43290), (468, 41625), (481, 40500), (500, 38961), (540, 36075), (555, 35100), (585, 33300), (650, 29970), (666, 29250), (675, 28860), (702, 27750), (740, 26325), (750, 25974), (780, 24975), (810, 24050), (900, 21645), (925, 21060), (962, 20250), (975, 19980), (999, 19500), (1053, 18500), (1110, 17550), (1125, 17316), (1170, 16650), (1300, 14985), (1332, 14625), (1350, 14430), (1404, 13875), (1443, 13500), (1500, 12987), (1620, 12025), (1625, 11988), (1665, 11700), (1755, 11100), (1850, 10530), (1924, 10125), (1950, 9990), (1998, 9750), (2025, 9620), (2106, 9250), (2220, 8775), (2250, 8658), (2340, 8325), (2405, 8100), (2700, 7215), (2775, 7020), (2886, 6750), (2925, 6660), (2997, 6500), (3250, 5994), (3330, 5850), (3375, 5772), (3510, 5550), (3700, 5265), (3900, 4995), (3996, 4875), (4050, 4810), (4212, 4625), (4329, 4500)]