20699280

素因数分解:

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

素因数の和:103

約数の個数: 240

約数和(自身を含む): 83744640

約数和(自身を除く): 63045360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 37, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 74, 80, 84, 90, 105, 108, 111, 112, 120, 126, 135, 140, 144, 148, 168, 180, 185, 189, 210, 216, 222, 240, 252, 259, 270, 280, 296, 315, 333, 336, 360, 370, 378, 420, 432, 444, 504, 518, 540, 555, 560, 592, 630, 666, 720, 740, 756, 777, 840, 888, 945, 999, 1008, 1036, 1080, 1110, 1260, 1295, 1332, 1369, 1480, 1512, 1554, 1665, 1680, 1776, 1890, 1998, 2072, 2160, 2220, 2331, 2520, 2590, 2664, 2738, 2960, 3024, 3108, 3330, 3780, 3885, 3996, 4107, 4144, 4440, 4662, 4995, 5040, 5180, 5328, 5476, 6216, 6660, 6845, 6993, 7560, 7770, 7992, 8214, 8880, 9324, 9583, 9990, 10360, 10952, 11655, 12321, 12432, 13320, 13690, 13986, 15120, 15540, 15984, 16428, 18648, 19166, 19980, 20535, 20720, 21904, 23310, 24642, 26640, 27380, 27972, 28749, 31080, 32856, 34965, 36963, 37296, 38332, 39960, 41070, 46620, 47915, 49284, 54760, 55944, 57498, 61605, 62160, 65712, 69930, 73926, 76664, 79920, 82140, 86247, 93240, 95830, 98568, 109520, 111888, 114996, 123210, 139860, 143745, 147852, 153328, 164280, 172494, 184815, 186480, 191660, 197136, 229992, 246420, 258741, 279720, 287490, 295704, 328560, 344988, 369630, 383320, 431235, 459984, 492840, 517482, 559440, 574980, 591408, 689976, 739260, 766640, 862470, 985680, 1034964, 1149960, 1293705, 1379952, 1478520, 1724940, 2069928, 2299920, 2587410, 2957040, 3449880, 4139856, 5174820, 6899760, 10349640, 20699280]

約数ペア:

[(1, 20699280), (2, 10349640), (3, 6899760), (4, 5174820), (5, 4139856), (6, 3449880), (7, 2957040), (8, 2587410), (9, 2299920), (10, 2069928), (12, 1724940), (14, 1478520), (15, 1379952), (16, 1293705), (18, 1149960), (20, 1034964), (21, 985680), (24, 862470), (27, 766640), (28, 739260), (30, 689976), (35, 591408), (36, 574980), (37, 559440), (40, 517482), (42, 492840), (45, 459984), (48, 431235), (54, 383320), (56, 369630), (60, 344988), (63, 328560), (70, 295704), (72, 287490), (74, 279720), (80, 258741), (84, 246420), (90, 229992), (105, 197136), (108, 191660), (111, 186480), (112, 184815), (120, 172494), (126, 164280), (135, 153328), (140, 147852), (144, 143745), (148, 139860), (168, 123210), (180, 114996), (185, 111888), (189, 109520), (210, 98568), (216, 95830), (222, 93240), (240, 86247), (252, 82140), (259, 79920), (270, 76664), (280, 73926), (296, 69930), (315, 65712), (333, 62160), (336, 61605), (360, 57498), (370, 55944), (378, 54760), (420, 49284), (432, 47915), (444, 46620), (504, 41070), (518, 39960), (540, 38332), (555, 37296), (560, 36963), (592, 34965), (630, 32856), (666, 31080), (720, 28749), (740, 27972), (756, 27380), (777, 26640), (840, 24642), (888, 23310), (945, 21904), (999, 20720), (1008, 20535), (1036, 19980), (1080, 19166), (1110, 18648), (1260, 16428), (1295, 15984), (1332, 15540), (1369, 15120), (1480, 13986), (1512, 13690), (1554, 13320), (1665, 12432), (1680, 12321), (1776, 11655), (1890, 10952), (1998, 10360), (2072, 9990), (2160, 9583), (2220, 9324), (2331, 8880), (2520, 8214), (2590, 7992), (2664, 7770), (2738, 7560), (2960, 6993), (3024, 6845), (3108, 6660), (3330, 6216), (3780, 5476), (3885, 5328), (3996, 5180), (4107, 5040), (4144, 4995), (4440, 4662)]