28308670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 58927680

約数和(自身を除く): 30619010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 73, 95, 130, 146, 157, 190, 247, 314, 365, 494, 730, 785, 949, 1235, 1387, 1570, 1898, 2041, 2470, 2774, 2983, 4082, 4745, 5966, 6935, 9490, 10205, 11461, 13870, 14915, 18031, 20410, 22922, 29830, 36062, 38779, 57305, 77558, 90155, 114610, 148993, 180310, 193895, 217759, 297986, 387790, 435518, 744965, 1088795, 1489930, 2177590, 2830867, 5661734, 14154335, 28308670]

約数ペア:

[(1, 28308670), (2, 14154335), (5, 5661734), (10, 2830867), (13, 2177590), (19, 1489930), (26, 1088795), (38, 744965), (65, 435518), (73, 387790), (95, 297986), (130, 217759), (146, 193895), (157, 180310), (190, 148993), (247, 114610), (314, 90155), (365, 77558), (494, 57305), (730, 38779), (785, 36062), (949, 29830), (1235, 22922), (1387, 20410), (1570, 18031), (1898, 14915), (2041, 13870), (2470, 11461), (2774, 10205), (2983, 9490), (4082, 6935), (4745, 5966)]