127911680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7687}}^1$

素因数の和:7721

約数の個数: 72

約数和(自身を含む): 329999712

約数和(自身を除く): 202088032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 7687, 8320, 15374, 16640, 30748, 38435, 61496, 76870, 99931, 122992, 153740, 199862, 245984, 307480, 399724, 491968, 499655, 614960, 799448, 983936, 999310, 1229920, 1598896, 1967872, 1998620, 2459840, 3197792, 3997240, 4919680, 6395584, 7994480, 9839360, 12791168, 15988960, 25582336, 31977920, 63955840, 127911680]

約数ペア:

[(1, 127911680), (2, 63955840), (4, 31977920), (5, 25582336), (8, 15988960), (10, 12791168), (13, 9839360), (16, 7994480), (20, 6395584), (26, 4919680), (32, 3997240), (40, 3197792), (52, 2459840), (64, 1998620), (65, 1967872), (80, 1598896), (104, 1229920), (128, 999310), (130, 983936), (160, 799448), (208, 614960), (256, 499655), (260, 491968), (320, 399724), (416, 307480), (520, 245984), (640, 199862), (832, 153740), (1040, 122992), (1280, 99931), (1664, 76870), (2080, 61496), (3328, 38435), (4160, 30748), (7687, 16640), (8320, 15374)]