20453231520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{90469}}^1$

素因数の和:90647

約数の個数: 144

約数和(自身を含む): 70241993640

約数和(自身を除く): 49788762120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 157, 160, 180, 240, 288, 314, 360, 471, 480, 628, 720, 785, 942, 1256, 1413, 1440, 1570, 1884, 2355, 2512, 2826, 3140, 3768, 4710, 5024, 5652, 6280, 7065, 7536, 9420, 11304, 12560, 14130, 15072, 18840, 22608, 25120, 28260, 37680, 45216, 56520, 75360, 90469, 113040, 180938, 226080, 271407, 361876, 452345, 542814, 723752, 814221, 904690, 1085628, 1357035, 1447504, 1628442, 1809380, 2171256, 2714070, 2895008, 3256884, 3618760, 4071105, 4342512, 5428140, 6513768, 7237520, 8142210, 8685024, 10856280, 13027536, 14203633, 14475040, 16284420, 21712560, 26055072, 28407266, 32568840, 42610899, 43425120, 56814532, 65137680, 71018165, 85221798, 113629064, 127832697, 130275360, 142036330, 170443596, 213054495, 227258128, 255665394, 284072660, 340887192, 426108990, 454516256, 511330788, 568145320, 639163485, 681774384, 852217980, 1022661576, 1136290640, 1278326970, 1363548768, 1704435960, 2045323152, 2272581280, 2556653940, 3408871920, 4090646304, 5113307880, 6817743840, 10226615760, 20453231520]

約数ペア:

[(1, 20453231520), (2, 10226615760), (3, 6817743840), (4, 5113307880), (5, 4090646304), (6, 3408871920), (8, 2556653940), (9, 2272581280), (10, 2045323152), (12, 1704435960), (15, 1363548768), (16, 1278326970), (18, 1136290640), (20, 1022661576), (24, 852217980), (30, 681774384), (32, 639163485), (36, 568145320), (40, 511330788), (45, 454516256), (48, 426108990), (60, 340887192), (72, 284072660), (80, 255665394), (90, 227258128), (96, 213054495), (120, 170443596), (144, 142036330), (157, 130275360), (160, 127832697), (180, 113629064), (240, 85221798), (288, 71018165), (314, 65137680), (360, 56814532), (471, 43425120), (480, 42610899), (628, 32568840), (720, 28407266), (785, 26055072), (942, 21712560), (1256, 16284420), (1413, 14475040), (1440, 14203633), (1570, 13027536), (1884, 10856280), (2355, 8685024), (2512, 8142210), (2826, 7237520), (3140, 6513768), (3768, 5428140), (4710, 4342512), (5024, 4071105), (5652, 3618760), (6280, 3256884), (7065, 2895008), (7536, 2714070), (9420, 2171256), (11304, 1809380), (12560, 1628442), (14130, 1447504), (15072, 1357035), (18840, 1085628), (22608, 904690), (25120, 814221), (28260, 723752), (37680, 542814), (45216, 452345), (56520, 361876), (75360, 271407), (90469, 226080), (113040, 180938)]