221423840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1297}}^1$

素因数の和:1420

約数の個数: 96

約数和(自身を含む): 576997344

約数和(自身を除く): 355573504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 97, 110, 160, 176, 194, 220, 352, 388, 440, 485, 776, 880, 970, 1067, 1297, 1552, 1760, 1940, 2134, 2594, 3104, 3880, 4268, 5188, 5335, 6485, 7760, 8536, 10376, 10670, 12970, 14267, 15520, 17072, 20752, 21340, 25940, 28534, 34144, 41504, 42680, 51880, 57068, 71335, 85360, 103760, 114136, 125809, 142670, 170720, 207520, 228272, 251618, 285340, 456544, 503236, 570680, 629045, 1006472, 1141360, 1258090, 1383899, 2012944, 2282720, 2516180, 2767798, 4025888, 5032360, 5535596, 6919495, 10064720, 11071192, 13838990, 20129440, 22142384, 27677980, 44284768, 55355960, 110711920, 221423840]

約数ペア:

[(1, 221423840), (2, 110711920), (4, 55355960), (5, 44284768), (8, 27677980), (10, 22142384), (11, 20129440), (16, 13838990), (20, 11071192), (22, 10064720), (32, 6919495), (40, 5535596), (44, 5032360), (55, 4025888), (80, 2767798), (88, 2516180), (97, 2282720), (110, 2012944), (160, 1383899), (176, 1258090), (194, 1141360), (220, 1006472), (352, 629045), (388, 570680), (440, 503236), (485, 456544), (776, 285340), (880, 251618), (970, 228272), (1067, 207520), (1297, 170720), (1552, 142670), (1760, 125809), (1940, 114136), (2134, 103760), (2594, 85360), (3104, 71335), (3880, 57068), (4268, 51880), (5188, 42680), (5335, 41504), (6485, 34144), (7760, 28534), (8536, 25940), (10376, 21340), (10670, 20752), (12970, 17072), (14267, 15520)]