218831480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1549

約数の個数: 128

約数和(自身を含む): 615444480

約数和(自身を除く): 396613000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 527, 595, 620, 680, 868, 952, 1054, 1085, 1190, 1240, 1483, 1736, 2108, 2170, 2380, 2635, 2966, 3689, 4216, 4340, 4760, 5270, 5932, 7378, 7415, 8680, 10381, 10540, 11864, 14756, 14830, 18445, 20762, 21080, 25211, 29512, 29660, 36890, 41524, 45973, 50422, 51905, 59320, 73780, 83048, 91946, 100844, 103810, 126055, 147560, 176477, 183892, 201688, 207620, 229865, 252110, 321811, 352954, 367784, 415240, 459730, 504220, 643622, 705908, 781541, 882385, 919460, 1008440, 1287244, 1411816, 1563082, 1609055, 1764770, 1838920, 2574488, 3126164, 3218110, 3529540, 3907705, 5470787, 6252328, 6436220, 7059080, 7815410, 10941574, 12872440, 15630820, 21883148, 27353935, 31261640, 43766296, 54707870, 109415740, 218831480]

約数ペア:

[(1, 218831480), (2, 109415740), (4, 54707870), (5, 43766296), (7, 31261640), (8, 27353935), (10, 21883148), (14, 15630820), (17, 12872440), (20, 10941574), (28, 7815410), (31, 7059080), (34, 6436220), (35, 6252328), (40, 5470787), (56, 3907705), (62, 3529540), (68, 3218110), (70, 3126164), (85, 2574488), (119, 1838920), (124, 1764770), (136, 1609055), (140, 1563082), (155, 1411816), (170, 1287244), (217, 1008440), (238, 919460), (248, 882385), (280, 781541), (310, 705908), (340, 643622), (434, 504220), (476, 459730), (527, 415240), (595, 367784), (620, 352954), (680, 321811), (868, 252110), (952, 229865), (1054, 207620), (1085, 201688), (1190, 183892), (1240, 176477), (1483, 147560), (1736, 126055), (2108, 103810), (2170, 100844), (2380, 91946), (2635, 83048), (2966, 73780), (3689, 59320), (4216, 51905), (4340, 50422), (4760, 45973), (5270, 41524), (5932, 36890), (7378, 29660), (7415, 29512), (8680, 25211), (10381, 21080), (10540, 20762), (11864, 18445), (14756, 14830)]