81374176

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 72

約数和(自身を含む): 178192224

約数和(自身を除く): 96818048

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 169, 208, 328, 338, 367, 416, 533, 656, 676, 734, 1066, 1312, 1352, 1468, 2132, 2704, 2936, 4264, 4771, 5408, 5872, 6929, 8528, 9542, 11744, 13858, 15047, 17056, 19084, 27716, 30094, 38168, 55432, 60188, 62023, 76336, 110864, 120376, 124046, 152672, 195611, 221728, 240752, 248092, 391222, 481504, 496184, 782444, 992368, 1564888, 1984736, 2542943, 3129776, 5085886, 6259552, 10171772, 20343544, 40687088, 81374176]

約数ペア:

[(1, 81374176), (2, 40687088), (4, 20343544), (8, 10171772), (13, 6259552), (16, 5085886), (26, 3129776), (32, 2542943), (41, 1984736), (52, 1564888), (82, 992368), (104, 782444), (164, 496184), (169, 481504), (208, 391222), (328, 248092), (338, 240752), (367, 221728), (416, 195611), (533, 152672), (656, 124046), (676, 120376), (734, 110864), (1066, 76336), (1312, 62023), (1352, 60188), (1468, 55432), (2132, 38168), (2704, 30094), (2936, 27716), (4264, 19084), (4771, 17056), (5408, 15047), (5872, 13858), (6929, 11744), (8528, 9542)]