212675840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12781}}^1$

素因数の和:12815

約数の個数: 72

約数和(自身を含む): 548654568

約数和(自身を除く): 335978728

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, 8320, 12781, 16640, 25562, 51124, 63905, 102248, 127810, 166153, 204496, 255620, 332306, 408992, 511240, 664612, 817984, 830765, 1022480, 1329224, 1635968, 1661530, 2044960, 2658448, 3271936, 3323060, 4089920, 5316896, 6646120, 8179840, 10633792, 13292240, 16359680, 21267584, 26584480, 42535168, 53168960, 106337920, 212675840]

約数ペア:

[(1, 212675840), (2, 106337920), (4, 53168960), (5, 42535168), (8, 26584480), (10, 21267584), (13, 16359680), (16, 13292240), (20, 10633792), (26, 8179840), (32, 6646120), (40, 5316896), (52, 4089920), (64, 3323060), (65, 3271936), (80, 2658448), (104, 2044960), (128, 1661530), (130, 1635968), (160, 1329224), (208, 1022480), (256, 830765), (260, 817984), (320, 664612), (416, 511240), (520, 408992), (640, 332306), (832, 255620), (1040, 204496), (1280, 166153), (1664, 127810), (2080, 102248), (3328, 63905), (4160, 51124), (8320, 25562), (12781, 16640)]