128123080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{641}}^1$

素因数の和:934

約数の個数: 64

約数和(自身を含む): 305078400

約数和(自身を除く): 176955320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 263, 380, 526, 641, 760, 1052, 1282, 1315, 2104, 2564, 2630, 3205, 4997, 5128, 5260, 6410, 9994, 10520, 12179, 12820, 19988, 24358, 24985, 25640, 39976, 48716, 49970, 60895, 97432, 99940, 121790, 168583, 199880, 243580, 337166, 487160, 674332, 842915, 1348664, 1685830, 3203077, 3371660, 6406154, 6743320, 12812308, 16015385, 25624616, 32030770, 64061540, 128123080]

約数ペア:

[(1, 128123080), (2, 64061540), (4, 32030770), (5, 25624616), (8, 16015385), (10, 12812308), (19, 6743320), (20, 6406154), (38, 3371660), (40, 3203077), (76, 1685830), (95, 1348664), (152, 842915), (190, 674332), (263, 487160), (380, 337166), (526, 243580), (641, 199880), (760, 168583), (1052, 121790), (1282, 99940), (1315, 97432), (2104, 60895), (2564, 49970), (2630, 48716), (3205, 39976), (4997, 25640), (5128, 24985), (5260, 24358), (6410, 19988), (9994, 12820), (10520, 12179)]