202120880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1783}}^1$

素因数の和:1918

約数の個数: 80

約数和(自身を含む): 511008960

約数和(自身を除く): 308888080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 436, 520, 545, 872, 1040, 1090, 1417, 1744, 1783, 2180, 2834, 3566, 4360, 5668, 7085, 7132, 8720, 8915, 11336, 14170, 14264, 17830, 22672, 23179, 28340, 28528, 35660, 46358, 56680, 71320, 92716, 113360, 115895, 142640, 185432, 194347, 231790, 370864, 388694, 463580, 777388, 927160, 971735, 1554776, 1854320, 1943470, 2526511, 3109552, 3886940, 5053022, 7773880, 10106044, 12632555, 15547760, 20212088, 25265110, 40424176, 50530220, 101060440, 202120880]

約数ペア:

[(1, 202120880), (2, 101060440), (4, 50530220), (5, 40424176), (8, 25265110), (10, 20212088), (13, 15547760), (16, 12632555), (20, 10106044), (26, 7773880), (40, 5053022), (52, 3886940), (65, 3109552), (80, 2526511), (104, 1943470), (109, 1854320), (130, 1554776), (208, 971735), (218, 927160), (260, 777388), (436, 463580), (520, 388694), (545, 370864), (872, 231790), (1040, 194347), (1090, 185432), (1417, 142640), (1744, 115895), (1783, 113360), (2180, 92716), (2834, 71320), (3566, 56680), (4360, 46358), (5668, 35660), (7085, 28528), (7132, 28340), (8720, 23179), (8915, 22672), (11336, 17830), (14170, 14264)]