20738016

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:249

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45306144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 29, 32, 36, 39, 48, 52, 58, 72, 78, 87, 96, 104, 116, 117, 144, 156, 174, 191, 208, 232, 234, 261, 288, 312, 348, 377, 382, 416, 464, 468, 522, 573, 624, 696, 754, 764, 928, 936, 1044, 1131, 1146, 1248, 1392, 1508, 1528, 1719, 1872, 2088, 2262, 2292, 2483, 2784, 3016, 3056, 3393, 3438, 3744, 4176, 4524, 4584, 4966, 5539, 6032, 6112, 6786, 6876, 7449, 8352, 9048, 9168, 9932, 11078, 12064, 13572, 13752, 14898, 16617, 18096, 18336, 19864, 22156, 22347, 27144, 27504, 29796, 33234, 36192, 39728, 44312, 44694, 49851, 54288, 55008, 59592, 66468, 72007, 79456, 88624, 89388, 99702, 108576, 119184, 132936, 144014, 177248, 178776, 199404, 216021, 238368, 265872, 288028, 357552, 398808, 432042, 531744, 576056, 648063, 715104, 797616, 864084, 1152112, 1296126, 1595232, 1728168, 2304224, 2592252, 3456336, 5184504, 6912672, 10369008, 20738016]

約数ペア:

[(1, 20738016), (2, 10369008), (3, 6912672), (4, 5184504), (6, 3456336), (8, 2592252), (9, 2304224), (12, 1728168), (13, 1595232), (16, 1296126), (18, 1152112), (24, 864084), (26, 797616), (29, 715104), (32, 648063), (36, 576056), (39, 531744), (48, 432042), (52, 398808), (58, 357552), (72, 288028), (78, 265872), (87, 238368), (96, 216021), (104, 199404), (116, 178776), (117, 177248), (144, 144014), (156, 132936), (174, 119184), (191, 108576), (208, 99702), (232, 89388), (234, 88624), (261, 79456), (288, 72007), (312, 66468), (348, 59592), (377, 55008), (382, 54288), (416, 49851), (464, 44694), (468, 44312), (522, 39728), (573, 36192), (624, 33234), (696, 29796), (754, 27504), (764, 27144), (928, 22347), (936, 22156), (1044, 19864), (1131, 18336), (1146, 18096), (1248, 16617), (1392, 14898), (1508, 13752), (1528, 13572), (1719, 12064), (1872, 11078), (2088, 9932), (2262, 9168), (2292, 9048), (2483, 8352), (2784, 7449), (3016, 6876), (3056, 6786), (3393, 6112), (3438, 6032), (3744, 5539), (4176, 4966), (4524, 4584)]