211227800

素因数分解:

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

素因数の和:242

約数の個数: 144

約数和(自身を含む): 583645680

約数和(自身を除く): 372417880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 140, 155, 157, 175, 200, 217, 248, 280, 310, 314, 350, 434, 620, 628, 700, 775, 785, 868, 961, 1085, 1099, 1240, 1256, 1400, 1550, 1570, 1736, 1922, 2170, 2198, 3100, 3140, 3844, 3925, 4340, 4396, 4805, 4867, 5425, 5495, 6200, 6280, 6727, 7688, 7850, 8680, 8792, 9610, 9734, 10850, 10990, 13454, 15700, 19220, 19468, 21700, 21980, 24025, 24335, 26908, 27475, 31400, 33635, 34069, 38440, 38936, 43400, 43960, 48050, 48670, 53816, 54950, 67270, 68138, 96100, 97340, 109900, 121675, 134540, 136276, 150877, 168175, 170345, 192200, 194680, 219800, 243350, 269080, 272552, 301754, 336350, 340690, 486700, 603508, 672700, 681380, 754385, 851725, 973400, 1056139, 1207016, 1345400, 1362760, 1508770, 1703450, 2112278, 3017540, 3406900, 3771925, 4224556, 5280695, 6035080, 6813800, 7543850, 8449112, 10561390, 15087700, 21122780, 26403475, 30175400, 42245560, 52806950, 105613900, 211227800]

約数ペア:

[(1, 211227800), (2, 105613900), (4, 52806950), (5, 42245560), (7, 30175400), (8, 26403475), (10, 21122780), (14, 15087700), (20, 10561390), (25, 8449112), (28, 7543850), (31, 6813800), (35, 6035080), (40, 5280695), (50, 4224556), (56, 3771925), (62, 3406900), (70, 3017540), (100, 2112278), (124, 1703450), (140, 1508770), (155, 1362760), (157, 1345400), (175, 1207016), (200, 1056139), (217, 973400), (248, 851725), (280, 754385), (310, 681380), (314, 672700), (350, 603508), (434, 486700), (620, 340690), (628, 336350), (700, 301754), (775, 272552), (785, 269080), (868, 243350), (961, 219800), (1085, 194680), (1099, 192200), (1240, 170345), (1256, 168175), (1400, 150877), (1550, 136276), (1570, 134540), (1736, 121675), (1922, 109900), (2170, 97340), (2198, 96100), (3100, 68138), (3140, 67270), (3844, 54950), (3925, 53816), (4340, 48670), (4396, 48050), (4805, 43960), (4867, 43400), (5425, 38936), (5495, 38440), (6200, 34069), (6280, 33635), (6727, 31400), (7688, 27475), (7850, 26908), (8680, 24335), (8792, 24025), (9610, 21980), (9734, 21700), (10850, 19468), (10990, 19220), (13454, 15700)]