20789040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 160

約数和(自身を含む): 69995520

約数和(自身を除く): 49206480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 47, 48, 57, 60, 76, 80, 94, 95, 97, 114, 120, 141, 152, 188, 190, 194, 228, 235, 240, 282, 285, 291, 304, 376, 380, 388, 456, 470, 485, 564, 570, 582, 705, 752, 760, 776, 893, 912, 940, 970, 1128, 1140, 1164, 1410, 1455, 1520, 1552, 1786, 1843, 1880, 1940, 2256, 2280, 2328, 2679, 2820, 2910, 3572, 3686, 3760, 3880, 4465, 4559, 4560, 4656, 5358, 5529, 5640, 5820, 7144, 7372, 7760, 8930, 9118, 9215, 10716, 11058, 11280, 11640, 13395, 13677, 14288, 14744, 17860, 18236, 18430, 21432, 22116, 22795, 23280, 26790, 27354, 27645, 29488, 35720, 36472, 36860, 42864, 44232, 45590, 53580, 54708, 55290, 68385, 71440, 72944, 73720, 86621, 88464, 91180, 107160, 109416, 110580, 136770, 147440, 173242, 182360, 214320, 218832, 221160, 259863, 273540, 346484, 364720, 433105, 442320, 519726, 547080, 692968, 866210, 1039452, 1094160, 1299315, 1385936, 1732420, 2078904, 2598630, 3464840, 4157808, 5197260, 6929680, 10394520, 20789040]

約数ペア:

[(1, 20789040), (2, 10394520), (3, 6929680), (4, 5197260), (5, 4157808), (6, 3464840), (8, 2598630), (10, 2078904), (12, 1732420), (15, 1385936), (16, 1299315), (19, 1094160), (20, 1039452), (24, 866210), (30, 692968), (38, 547080), (40, 519726), (47, 442320), (48, 433105), (57, 364720), (60, 346484), (76, 273540), (80, 259863), (94, 221160), (95, 218832), (97, 214320), (114, 182360), (120, 173242), (141, 147440), (152, 136770), (188, 110580), (190, 109416), (194, 107160), (228, 91180), (235, 88464), (240, 86621), (282, 73720), (285, 72944), (291, 71440), (304, 68385), (376, 55290), (380, 54708), (388, 53580), (456, 45590), (470, 44232), (485, 42864), (564, 36860), (570, 36472), (582, 35720), (705, 29488), (752, 27645), (760, 27354), (776, 26790), (893, 23280), (912, 22795), (940, 22116), (970, 21432), (1128, 18430), (1140, 18236), (1164, 17860), (1410, 14744), (1455, 14288), (1520, 13677), (1552, 13395), (1786, 11640), (1843, 11280), (1880, 11058), (1940, 10716), (2256, 9215), (2280, 9118), (2328, 8930), (2679, 7760), (2820, 7372), (2910, 7144), (3572, 5820), (3686, 5640), (3760, 5529), (3880, 5358), (4465, 4656), (4559, 4560)]