16420040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{347}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 45852480

約数和(自身を除く): 29432440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 169, 182, 260, 280, 338, 347, 364, 455, 520, 676, 694, 728, 845, 910, 1183, 1352, 1388, 1690, 1735, 1820, 2366, 2429, 2776, 3380, 3470, 3640, 4511, 4732, 4858, 5915, 6760, 6940, 9022, 9464, 9716, 11830, 12145, 13880, 18044, 19432, 22555, 23660, 24290, 31577, 36088, 45110, 47320, 48580, 58643, 63154, 90220, 97160, 117286, 126308, 157885, 180440, 234572, 252616, 293215, 315770, 410501, 469144, 586430, 631540, 821002, 1172860, 1263080, 1642004, 2052505, 2345720, 3284008, 4105010, 8210020, 16420040]

約数ペア:

[(1, 16420040), (2, 8210020), (4, 4105010), (5, 3284008), (7, 2345720), (8, 2052505), (10, 1642004), (13, 1263080), (14, 1172860), (20, 821002), (26, 631540), (28, 586430), (35, 469144), (40, 410501), (52, 315770), (56, 293215), (65, 252616), (70, 234572), (91, 180440), (104, 157885), (130, 126308), (140, 117286), (169, 97160), (182, 90220), (260, 63154), (280, 58643), (338, 48580), (347, 47320), (364, 45110), (455, 36088), (520, 31577), (676, 24290), (694, 23660), (728, 22555), (845, 19432), (910, 18044), (1183, 13880), (1352, 12145), (1388, 11830), (1690, 9716), (1735, 9464), (1820, 9022), (2366, 6940), (2429, 6760), (2776, 5915), (3380, 4858), (3470, 4732), (3640, 4511)]