20545200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:476

約数の個数: 180

約数和(自身を含む): 76956880

約数和(自身を除く): 56411680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 48, 50, 52, 60, 65, 72, 75, 78, 80, 90, 100, 104, 117, 120, 130, 144, 150, 156, 180, 195, 200, 208, 225, 234, 240, 260, 300, 312, 325, 360, 390, 400, 439, 450, 468, 520, 585, 600, 624, 650, 720, 780, 878, 900, 936, 975, 1040, 1170, 1200, 1300, 1317, 1560, 1756, 1800, 1872, 1950, 2195, 2340, 2600, 2634, 2925, 3120, 3512, 3600, 3900, 3951, 4390, 4680, 5200, 5268, 5707, 5850, 6585, 7024, 7800, 7902, 8780, 9360, 10536, 10975, 11414, 11700, 13170, 15600, 15804, 17121, 17560, 19755, 21072, 21950, 22828, 23400, 26340, 28535, 31608, 32925, 34242, 35120, 39510, 43900, 45656, 46800, 51363, 52680, 57070, 63216, 65850, 68484, 79020, 85605, 87800, 91312, 98775, 102726, 105360, 114140, 131700, 136968, 142675, 158040, 171210, 175600, 197550, 205452, 228280, 256815, 263400, 273936, 285350, 316080, 342420, 395100, 410904, 428025, 456560, 513630, 526800, 570700, 684840, 790200, 821808, 856050, 1027260, 1141400, 1284075, 1369680, 1580400, 1712100, 2054520, 2282800, 2568150, 3424200, 4109040, 5136300, 6848400, 10272600, 20545200]

約数ペア:

[(1, 20545200), (2, 10272600), (3, 6848400), (4, 5136300), (5, 4109040), (6, 3424200), (8, 2568150), (9, 2282800), (10, 2054520), (12, 1712100), (13, 1580400), (15, 1369680), (16, 1284075), (18, 1141400), (20, 1027260), (24, 856050), (25, 821808), (26, 790200), (30, 684840), (36, 570700), (39, 526800), (40, 513630), (45, 456560), (48, 428025), (50, 410904), (52, 395100), (60, 342420), (65, 316080), (72, 285350), (75, 273936), (78, 263400), (80, 256815), (90, 228280), (100, 205452), (104, 197550), (117, 175600), (120, 171210), (130, 158040), (144, 142675), (150, 136968), (156, 131700), (180, 114140), (195, 105360), (200, 102726), (208, 98775), (225, 91312), (234, 87800), (240, 85605), (260, 79020), (300, 68484), (312, 65850), (325, 63216), (360, 57070), (390, 52680), (400, 51363), (439, 46800), (450, 45656), (468, 43900), (520, 39510), (585, 35120), (600, 34242), (624, 32925), (650, 31608), (720, 28535), (780, 26340), (878, 23400), (900, 22828), (936, 21950), (975, 21072), (1040, 19755), (1170, 17560), (1200, 17121), (1300, 15804), (1317, 15600), (1560, 13170), (1756, 11700), (1800, 11414), (1872, 10975), (1950, 10536), (2195, 9360), (2340, 8780), (2600, 7902), (2634, 7800), (2925, 7024), (3120, 6585), (3512, 5850), (3600, 5707), (3900, 5268), (3951, 5200), (4390, 4680)]