81271424

素因数分解:

$2^7\times {\mathrm{13}}^3\times {\mathrm{17}}^2$

素因数の和:87

約数の個数: 96

約数和(自身を含む): 186318300

約数和(自身を除く): 105046876

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 169, 208, 221, 272, 289, 338, 416, 442, 544, 578, 676, 832, 884, 1088, 1156, 1352, 1664, 1768, 2176, 2197, 2312, 2704, 2873, 3536, 3757, 4394, 4624, 5408, 5746, 7072, 7514, 8788, 9248, 10816, 11492, 14144, 15028, 17576, 18496, 21632, 22984, 28288, 30056, 35152, 36992, 37349, 45968, 48841, 60112, 70304, 74698, 91936, 97682, 120224, 140608, 149396, 183872, 195364, 240448, 281216, 298792, 367744, 390728, 480896, 597584, 634933, 781456, 1195168, 1269866, 1562912, 2390336, 2539732, 3125824, 4780672, 5079464, 6251648, 10158928, 20317856, 40635712, 81271424]

約数ペア:

[(1, 81271424), (2, 40635712), (4, 20317856), (8, 10158928), (13, 6251648), (16, 5079464), (17, 4780672), (26, 3125824), (32, 2539732), (34, 2390336), (52, 1562912), (64, 1269866), (68, 1195168), (104, 781456), (128, 634933), (136, 597584), (169, 480896), (208, 390728), (221, 367744), (272, 298792), (289, 281216), (338, 240448), (416, 195364), (442, 183872), (544, 149396), (578, 140608), (676, 120224), (832, 97682), (884, 91936), (1088, 74698), (1156, 70304), (1352, 60112), (1664, 48841), (1768, 45968), (2176, 37349), (2197, 36992), (2312, 35152), (2704, 30056), (2873, 28288), (3536, 22984), (3757, 21632), (4394, 18496), (4624, 17576), (5408, 15028), (5746, 14144), (7072, 11492), (7514, 10816), (8788, 9248)]