28245568

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 56

約数和(自身を含む): 63943992

約数和(自身を除く): 35698424

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1768, 1997, 3536, 3994, 7072, 7988, 14144, 15976, 25961, 31952, 33949, 51922, 63904, 67898, 103844, 127808, 135796, 207688, 271592, 415376, 441337, 543184, 830752, 882674, 1086368, 1661504, 1765348, 2172736, 3530696, 7061392, 14122784, 28245568]

約数ペア:

[(1, 28245568), (2, 14122784), (4, 7061392), (8, 3530696), (13, 2172736), (16, 1765348), (17, 1661504), (26, 1086368), (32, 882674), (34, 830752), (52, 543184), (64, 441337), (68, 415376), (104, 271592), (136, 207688), (208, 135796), (221, 127808), (272, 103844), (416, 67898), (442, 63904), (544, 51922), (832, 33949), (884, 31952), (1088, 25961), (1768, 15976), (1997, 14144), (3536, 7988), (3994, 7072)]