858409880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 2052864000

約数和(自身を除く): 1194454120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 59, 71, 94, 109, 118, 142, 188, 218, 235, 236, 284, 295, 355, 376, 436, 470, 472, 545, 568, 590, 710, 872, 940, 1090, 1180, 1420, 1880, 2180, 2360, 2773, 2840, 3337, 4189, 4360, 5123, 5546, 6431, 6674, 7739, 8378, 10246, 11092, 12862, 13348, 13865, 15478, 16685, 16756, 20492, 20945, 22184, 25615, 25724, 26696, 27730, 30956, 32155, 33370, 33512, 38695, 40984, 41890, 51230, 51448, 55460, 61912, 64310, 66740, 77390, 83780, 102460, 110920, 128620, 133480, 154780, 167560, 196883, 204920, 257240, 302257, 309560, 363733, 393766, 456601, 604514, 727466, 787532, 913202, 984415, 1209028, 1454932, 1511285, 1575064, 1818665, 1826404, 1968830, 2283005, 2418056, 2909864, 3022570, 3637330, 3652808, 3937660, 4566010, 6045140, 7274660, 7875320, 9132020, 12090280, 14549320, 18264040, 21460247, 42920494, 85840988, 107301235, 171681976, 214602470, 429204940, 858409880]

約数ペア:

[(1, 858409880), (2, 429204940), (4, 214602470), (5, 171681976), (8, 107301235), (10, 85840988), (20, 42920494), (40, 21460247), (47, 18264040), (59, 14549320), (71, 12090280), (94, 9132020), (109, 7875320), (118, 7274660), (142, 6045140), (188, 4566010), (218, 3937660), (235, 3652808), (236, 3637330), (284, 3022570), (295, 2909864), (355, 2418056), (376, 2283005), (436, 1968830), (470, 1826404), (472, 1818665), (545, 1575064), (568, 1511285), (590, 1454932), (710, 1209028), (872, 984415), (940, 913202), (1090, 787532), (1180, 727466), (1420, 604514), (1880, 456601), (2180, 393766), (2360, 363733), (2773, 309560), (2840, 302257), (3337, 257240), (4189, 204920), (4360, 196883), (5123, 167560), (5546, 154780), (6431, 133480), (6674, 128620), (7739, 110920), (8378, 102460), (10246, 83780), (11092, 77390), (12862, 66740), (13348, 64310), (13865, 61912), (15478, 55460), (16685, 51448), (16756, 51230), (20492, 41890), (20945, 40984), (22184, 38695), (25615, 33512), (25724, 33370), (26696, 32155), (27730, 30956)]