19904544

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 144

約数和(自身を含む): 63370944

約数和(自身を除く): 43466400

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 61, 66, 72, 88, 96, 99, 103, 122, 132, 144, 176, 183, 198, 206, 244, 264, 288, 309, 352, 366, 396, 412, 488, 528, 549, 618, 671, 732, 792, 824, 927, 976, 1056, 1098, 1133, 1236, 1342, 1464, 1584, 1648, 1854, 1952, 2013, 2196, 2266, 2472, 2684, 2928, 3168, 3296, 3399, 3708, 4026, 4392, 4532, 4944, 5368, 5856, 6039, 6283, 6798, 7416, 8052, 8784, 9064, 9888, 10197, 10736, 12078, 12566, 13596, 14832, 16104, 17568, 18128, 18849, 20394, 21472, 24156, 25132, 27192, 29664, 32208, 36256, 37698, 40788, 48312, 50264, 54384, 56547, 64416, 69113, 75396, 81576, 96624, 100528, 108768, 113094, 138226, 150792, 163152, 193248, 201056, 207339, 226188, 276452, 301584, 326304, 414678, 452376, 552904, 603168, 622017, 829356, 904752, 1105808, 1244034, 1658712, 1809504, 2211616, 2488068, 3317424, 4976136, 6634848, 9952272, 19904544]

約数ペア:

[(1, 19904544), (2, 9952272), (3, 6634848), (4, 4976136), (6, 3317424), (8, 2488068), (9, 2211616), (11, 1809504), (12, 1658712), (16, 1244034), (18, 1105808), (22, 904752), (24, 829356), (32, 622017), (33, 603168), (36, 552904), (44, 452376), (48, 414678), (61, 326304), (66, 301584), (72, 276452), (88, 226188), (96, 207339), (99, 201056), (103, 193248), (122, 163152), (132, 150792), (144, 138226), (176, 113094), (183, 108768), (198, 100528), (206, 96624), (244, 81576), (264, 75396), (288, 69113), (309, 64416), (352, 56547), (366, 54384), (396, 50264), (412, 48312), (488, 40788), (528, 37698), (549, 36256), (618, 32208), (671, 29664), (732, 27192), (792, 25132), (824, 24156), (927, 21472), (976, 20394), (1056, 18849), (1098, 18128), (1133, 17568), (1236, 16104), (1342, 14832), (1464, 13596), (1584, 12566), (1648, 12078), (1854, 10736), (1952, 10197), (2013, 9888), (2196, 9064), (2266, 8784), (2472, 8052), (2684, 7416), (2928, 6798), (3168, 6283), (3296, 6039), (3399, 5856), (3708, 5368), (4026, 4944), (4392, 4532)]