20441400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 192

約数和(自身を含む): 75233280

約数和(自身を除く): 54791880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 31, 35, 40, 42, 50, 56, 60, 62, 70, 75, 84, 93, 100, 105, 120, 124, 140, 150, 155, 157, 168, 175, 186, 200, 210, 217, 248, 280, 300, 310, 314, 350, 372, 420, 434, 465, 471, 525, 600, 620, 628, 651, 700, 744, 775, 785, 840, 868, 930, 942, 1050, 1085, 1099, 1240, 1256, 1302, 1400, 1550, 1570, 1736, 1860, 1884, 2100, 2170, 2198, 2325, 2355, 2604, 3100, 3140, 3255, 3297, 3720, 3768, 3925, 4200, 4340, 4396, 4650, 4710, 4867, 5208, 5425, 5495, 6200, 6280, 6510, 6594, 7850, 8680, 8792, 9300, 9420, 9734, 10850, 10990, 11775, 13020, 13188, 14601, 15700, 16275, 16485, 18600, 18840, 19468, 21700, 21980, 23550, 24335, 26040, 26376, 27475, 29202, 31400, 32550, 32970, 34069, 38936, 43400, 43960, 47100, 48670, 54950, 58404, 65100, 65940, 68138, 73005, 82425, 94200, 97340, 102207, 109900, 116808, 121675, 130200, 131880, 136276, 146010, 164850, 170345, 194680, 204414, 219800, 243350, 272552, 292020, 329700, 340690, 365025, 408828, 486700, 511035, 584040, 659400, 681380, 730050, 817656, 851725, 973400, 1022070, 1362760, 1460100, 1703450, 2044140, 2555175, 2920200, 3406900, 4088280, 5110350, 6813800, 10220700, 20441400]

約数ペア:

[(1, 20441400), (2, 10220700), (3, 6813800), (4, 5110350), (5, 4088280), (6, 3406900), (7, 2920200), (8, 2555175), (10, 2044140), (12, 1703450), (14, 1460100), (15, 1362760), (20, 1022070), (21, 973400), (24, 851725), (25, 817656), (28, 730050), (30, 681380), (31, 659400), (35, 584040), (40, 511035), (42, 486700), (50, 408828), (56, 365025), (60, 340690), (62, 329700), (70, 292020), (75, 272552), (84, 243350), (93, 219800), (100, 204414), (105, 194680), (120, 170345), (124, 164850), (140, 146010), (150, 136276), (155, 131880), (157, 130200), (168, 121675), (175, 116808), (186, 109900), (200, 102207), (210, 97340), (217, 94200), (248, 82425), (280, 73005), (300, 68138), (310, 65940), (314, 65100), (350, 58404), (372, 54950), (420, 48670), (434, 47100), (465, 43960), (471, 43400), (525, 38936), (600, 34069), (620, 32970), (628, 32550), (651, 31400), (700, 29202), (744, 27475), (775, 26376), (785, 26040), (840, 24335), (868, 23550), (930, 21980), (942, 21700), (1050, 19468), (1085, 18840), (1099, 18600), (1240, 16485), (1256, 16275), (1302, 15700), (1400, 14601), (1550, 13188), (1570, 13020), (1736, 11775), (1860, 10990), (1884, 10850), (2100, 9734), (2170, 9420), (2198, 9300), (2325, 8792), (2355, 8680), (2604, 7850), (3100, 6594), (3140, 6510), (3255, 6280), (3297, 6200), (3720, 5495), (3768, 5425), (3925, 5208), (4200, 4867), (4340, 4710), (4396, 4650)]