28077840

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{619}}^1$

素因数の和:651

約数の個数: 200

約数和(自身を含む): 111629760

約数和(自身を除く): 83551920

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, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 504, 540, 560, 567, 619, 630, 648, 720, 756, 810, 840, 945, 1008, 1080, 1134, 1238, 1260, 1296, 1512, 1620, 1680, 1857, 1890, 2160, 2268, 2476, 2520, 2835, 3024, 3095, 3240, 3714, 3780, 4333, 4536, 4952, 5040, 5571, 5670, 6190, 6480, 7428, 7560, 8666, 9072, 9285, 9904, 11142, 11340, 12380, 12999, 14856, 15120, 16713, 17332, 18570, 21665, 22284, 22680, 24760, 25998, 27855, 29712, 33426, 34664, 37140, 38997, 43330, 44568, 45360, 49520, 50139, 51996, 55710, 64995, 66852, 69328, 74280, 77994, 83565, 86660, 89136, 100278, 103992, 111420, 116991, 129990, 133704, 148560, 155988, 167130, 173320, 194985, 200556, 207984, 222840, 233982, 250695, 259980, 267408, 311976, 334260, 346640, 350973, 389970, 401112, 445680, 467964, 501390, 519960, 584955, 623952, 668520, 701946, 779940, 802224, 935928, 1002780, 1039920, 1169910, 1337040, 1403892, 1559880, 1754865, 1871856, 2005560, 2339820, 2807784, 3119760, 3509730, 4011120, 4679640, 5615568, 7019460, 9359280, 14038920, 28077840]

約数ペア:

[(1, 28077840), (2, 14038920), (3, 9359280), (4, 7019460), (5, 5615568), (6, 4679640), (7, 4011120), (8, 3509730), (9, 3119760), (10, 2807784), (12, 2339820), (14, 2005560), (15, 1871856), (16, 1754865), (18, 1559880), (20, 1403892), (21, 1337040), (24, 1169910), (27, 1039920), (28, 1002780), (30, 935928), (35, 802224), (36, 779940), (40, 701946), (42, 668520), (45, 623952), (48, 584955), (54, 519960), (56, 501390), (60, 467964), (63, 445680), (70, 401112), (72, 389970), (80, 350973), (81, 346640), (84, 334260), (90, 311976), (105, 267408), (108, 259980), (112, 250695), (120, 233982), (126, 222840), (135, 207984), (140, 200556), (144, 194985), (162, 173320), (168, 167130), (180, 155988), (189, 148560), (210, 133704), (216, 129990), (240, 116991), (252, 111420), (270, 103992), (280, 100278), (315, 89136), (324, 86660), (336, 83565), (360, 77994), (378, 74280), (405, 69328), (420, 66852), (432, 64995), (504, 55710), (540, 51996), (560, 50139), (567, 49520), (619, 45360), (630, 44568), (648, 43330), (720, 38997), (756, 37140), (810, 34664), (840, 33426), (945, 29712), (1008, 27855), (1080, 25998), (1134, 24760), (1238, 22680), (1260, 22284), (1296, 21665), (1512, 18570), (1620, 17332), (1680, 16713), (1857, 15120), (1890, 14856), (2160, 12999), (2268, 12380), (2476, 11340), (2520, 11142), (2835, 9904), (3024, 9285), (3095, 9072), (3240, 8666), (3714, 7560), (3780, 7428), (4333, 6480), (4536, 6190), (4952, 5670), (5040, 5571)]