20438496

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 144

約数和(自身を含む): 64393056

約数和(自身を除く): 43954560

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 53, 72, 78, 96, 103, 104, 106, 117, 144, 156, 159, 206, 208, 212, 234, 288, 309, 312, 318, 412, 416, 424, 468, 477, 618, 624, 636, 689, 824, 848, 927, 936, 954, 1236, 1248, 1272, 1339, 1378, 1648, 1696, 1854, 1872, 1908, 2067, 2472, 2544, 2678, 2756, 3296, 3708, 3744, 3816, 4017, 4134, 4944, 5088, 5356, 5459, 5512, 6201, 7416, 7632, 8034, 8268, 9888, 10712, 10918, 11024, 12051, 12402, 14832, 15264, 16068, 16377, 16536, 21424, 21836, 22048, 24102, 24804, 29664, 32136, 32754, 33072, 42848, 43672, 48204, 49131, 49608, 64272, 65508, 66144, 70967, 87344, 96408, 98262, 99216, 128544, 131016, 141934, 174688, 192816, 196524, 198432, 212901, 262032, 283868, 385632, 393048, 425802, 524064, 567736, 638703, 786096, 851604, 1135472, 1277406, 1572192, 1703208, 2270944, 2554812, 3406416, 5109624, 6812832, 10219248, 20438496]

約数ペア:

[(1, 20438496), (2, 10219248), (3, 6812832), (4, 5109624), (6, 3406416), (8, 2554812), (9, 2270944), (12, 1703208), (13, 1572192), (16, 1277406), (18, 1135472), (24, 851604), (26, 786096), (32, 638703), (36, 567736), (39, 524064), (48, 425802), (52, 393048), (53, 385632), (72, 283868), (78, 262032), (96, 212901), (103, 198432), (104, 196524), (106, 192816), (117, 174688), (144, 141934), (156, 131016), (159, 128544), (206, 99216), (208, 98262), (212, 96408), (234, 87344), (288, 70967), (309, 66144), (312, 65508), (318, 64272), (412, 49608), (416, 49131), (424, 48204), (468, 43672), (477, 42848), (618, 33072), (624, 32754), (636, 32136), (689, 29664), (824, 24804), (848, 24102), (927, 22048), (936, 21836), (954, 21424), (1236, 16536), (1248, 16377), (1272, 16068), (1339, 15264), (1378, 14832), (1648, 12402), (1696, 12051), (1854, 11024), (1872, 10918), (1908, 10712), (2067, 9888), (2472, 8268), (2544, 8034), (2678, 7632), (2756, 7416), (3296, 6201), (3708, 5512), (3744, 5459), (3816, 5356), (4017, 5088), (4134, 4944)]