28540800

素因数分解:

$2^7\times 3^2\times 5^2\times {\mathrm{991}}^1$

素因数の和:1021

約数の個数: 144

約数和(自身を含む): 101942880

約数和(自身を除く): 73402080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 128, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 384, 400, 450, 480, 576, 600, 640, 720, 800, 900, 960, 991, 1152, 1200, 1440, 1600, 1800, 1920, 1982, 2400, 2880, 2973, 3200, 3600, 3964, 4800, 4955, 5760, 5946, 7200, 7928, 8919, 9600, 9910, 11892, 14400, 14865, 15856, 17838, 19820, 23784, 24775, 28800, 29730, 31712, 35676, 39640, 44595, 47568, 49550, 59460, 63424, 71352, 74325, 79280, 89190, 95136, 99100, 118920, 126848, 142704, 148650, 158560, 178380, 190272, 198200, 222975, 237840, 285408, 297300, 317120, 356760, 380544, 396400, 445950, 475680, 570816, 594600, 634240, 713520, 792800, 891900, 951360, 1141632, 1189200, 1427040, 1585600, 1783800, 1902720, 2378400, 2854080, 3171200, 3567600, 4756800, 5708160, 7135200, 9513600, 14270400, 28540800]

約数ペア:

[(1, 28540800), (2, 14270400), (3, 9513600), (4, 7135200), (5, 5708160), (6, 4756800), (8, 3567600), (9, 3171200), (10, 2854080), (12, 2378400), (15, 1902720), (16, 1783800), (18, 1585600), (20, 1427040), (24, 1189200), (25, 1141632), (30, 951360), (32, 891900), (36, 792800), (40, 713520), (45, 634240), (48, 594600), (50, 570816), (60, 475680), (64, 445950), (72, 396400), (75, 380544), (80, 356760), (90, 317120), (96, 297300), (100, 285408), (120, 237840), (128, 222975), (144, 198200), (150, 190272), (160, 178380), (180, 158560), (192, 148650), (200, 142704), (225, 126848), (240, 118920), (288, 99100), (300, 95136), (320, 89190), (360, 79280), (384, 74325), (400, 71352), (450, 63424), (480, 59460), (576, 49550), (600, 47568), (640, 44595), (720, 39640), (800, 35676), (900, 31712), (960, 29730), (991, 28800), (1152, 24775), (1200, 23784), (1440, 19820), (1600, 17838), (1800, 15856), (1920, 14865), (1982, 14400), (2400, 11892), (2880, 9910), (2973, 9600), (3200, 8919), (3600, 7928), (3964, 7200), (4800, 5946), (4955, 5760)]