20804832

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 42880608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 47, 48, 53, 58, 72, 87, 94, 96, 106, 116, 141, 144, 159, 174, 188, 212, 232, 261, 282, 288, 318, 348, 376, 423, 424, 464, 477, 522, 564, 636, 696, 752, 846, 848, 928, 954, 1044, 1128, 1272, 1363, 1392, 1504, 1537, 1692, 1696, 1908, 2088, 2256, 2491, 2544, 2726, 2784, 3074, 3384, 3816, 4089, 4176, 4512, 4611, 4982, 5088, 5452, 6148, 6768, 7473, 7632, 8178, 8352, 9222, 9964, 10904, 12267, 12296, 13536, 13833, 14946, 15264, 16356, 18444, 19928, 21808, 22419, 24534, 24592, 27666, 29892, 32712, 36888, 39856, 43616, 44838, 49068, 49184, 55332, 59784, 65424, 72239, 73776, 79712, 89676, 98136, 110664, 119568, 130848, 144478, 147552, 179352, 196272, 216717, 221328, 239136, 288956, 358704, 392544, 433434, 442656, 577912, 650151, 717408, 866868, 1155824, 1300302, 1733736, 2311648, 2600604, 3467472, 5201208, 6934944, 10402416, 20804832]

約数ペア:

[(1, 20804832), (2, 10402416), (3, 6934944), (4, 5201208), (6, 3467472), (8, 2600604), (9, 2311648), (12, 1733736), (16, 1300302), (18, 1155824), (24, 866868), (29, 717408), (32, 650151), (36, 577912), (47, 442656), (48, 433434), (53, 392544), (58, 358704), (72, 288956), (87, 239136), (94, 221328), (96, 216717), (106, 196272), (116, 179352), (141, 147552), (144, 144478), (159, 130848), (174, 119568), (188, 110664), (212, 98136), (232, 89676), (261, 79712), (282, 73776), (288, 72239), (318, 65424), (348, 59784), (376, 55332), (423, 49184), (424, 49068), (464, 44838), (477, 43616), (522, 39856), (564, 36888), (636, 32712), (696, 29892), (752, 27666), (846, 24592), (848, 24534), (928, 22419), (954, 21808), (1044, 19928), (1128, 18444), (1272, 16356), (1363, 15264), (1392, 14946), (1504, 13833), (1537, 13536), (1692, 12296), (1696, 12267), (1908, 10904), (2088, 9964), (2256, 9222), (2491, 8352), (2544, 8178), (2726, 7632), (2784, 7473), (3074, 6768), (3384, 6148), (3816, 5452), (4089, 5088), (4176, 4982), (4512, 4611)]