128311360

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4831}}^1$

素因数の和:4931

約数の個数: 56

約数和(自身を含む): 309286656

約数和(自身を除く): 180975296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 830, 1328, 1660, 2656, 3320, 4831, 5312, 6640, 9662, 13280, 19324, 24155, 26560, 38648, 48310, 77296, 96620, 154592, 193240, 309184, 386480, 400973, 772960, 801946, 1545920, 1603892, 2004865, 3207784, 4009730, 6415568, 8019460, 12831136, 16038920, 25662272, 32077840, 64155680, 128311360]

約数ペア:

[(1, 128311360), (2, 64155680), (4, 32077840), (5, 25662272), (8, 16038920), (10, 12831136), (16, 8019460), (20, 6415568), (32, 4009730), (40, 3207784), (64, 2004865), (80, 1603892), (83, 1545920), (160, 801946), (166, 772960), (320, 400973), (332, 386480), (415, 309184), (664, 193240), (830, 154592), (1328, 96620), (1660, 77296), (2656, 48310), (3320, 38648), (4831, 26560), (5312, 24155), (6640, 19324), (9662, 13280)]