78475280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1237}}^1$

素因数の和:1324

約数の個数: 80

約数和(自身を含む): 199872624

約数和(自身を除く): 121397344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1237, 1586, 2440, 2474, 3172, 3965, 4880, 4948, 6185, 6344, 7930, 9896, 12370, 12688, 15860, 16081, 19792, 24740, 31720, 32162, 49480, 63440, 64324, 75457, 80405, 98960, 128648, 150914, 160810, 257296, 301828, 321620, 377285, 603656, 643240, 754570, 980941, 1207312, 1286480, 1509140, 1961882, 3018280, 3923764, 4904705, 6036560, 7847528, 9809410, 15695056, 19618820, 39237640, 78475280]

約数ペア:

[(1, 78475280), (2, 39237640), (4, 19618820), (5, 15695056), (8, 9809410), (10, 7847528), (13, 6036560), (16, 4904705), (20, 3923764), (26, 3018280), (40, 1961882), (52, 1509140), (61, 1286480), (65, 1207312), (80, 980941), (104, 754570), (122, 643240), (130, 603656), (208, 377285), (244, 321620), (260, 301828), (305, 257296), (488, 160810), (520, 150914), (610, 128648), (793, 98960), (976, 80405), (1040, 75457), (1220, 64324), (1237, 63440), (1586, 49480), (2440, 32162), (2474, 31720), (3172, 24740), (3965, 19792), (4880, 16081), (4948, 15860), (6185, 12688), (6344, 12370), (7930, 9896)]