66749696

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:707

約数の個数: 72

約数和(自身を含む): 148345344

約数和(自身を除く): 81595648

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 647, 806, 832, 992, 1294, 1612, 1664, 1984, 2588, 3224, 3328, 3968, 5176, 6448, 7936, 8411, 10352, 12896, 16822, 20057, 20704, 25792, 33644, 40114, 41408, 51584, 67288, 80228, 82816, 103168, 134576, 160456, 165632, 260741, 269152, 320912, 521482, 538304, 641824, 1042964, 1076608, 1283648, 2085928, 2153216, 2567296, 4171856, 5134592, 8343712, 16687424, 33374848, 66749696]

約数ペア:

[(1, 66749696), (2, 33374848), (4, 16687424), (8, 8343712), (13, 5134592), (16, 4171856), (26, 2567296), (31, 2153216), (32, 2085928), (52, 1283648), (62, 1076608), (64, 1042964), (104, 641824), (124, 538304), (128, 521482), (208, 320912), (248, 269152), (256, 260741), (403, 165632), (416, 160456), (496, 134576), (647, 103168), (806, 82816), (832, 80228), (992, 67288), (1294, 51584), (1612, 41408), (1664, 40114), (1984, 33644), (2588, 25792), (3224, 20704), (3328, 20057), (3968, 16822), (5176, 12896), (6448, 10352), (7936, 8411)]