4006880

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 9616320

約数和(自身を除く): 5609440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 317, 395, 632, 634, 790, 1264, 1268, 1580, 1585, 2528, 2536, 3160, 3170, 5072, 6320, 6340, 10144, 12640, 12680, 25043, 25360, 50086, 50720, 100172, 125215, 200344, 250430, 400688, 500860, 801376, 1001720, 2003440, 4006880]

約数ペア:

[(1, 4006880), (2, 2003440), (4, 1001720), (5, 801376), (8, 500860), (10, 400688), (16, 250430), (20, 200344), (32, 125215), (40, 100172), (79, 50720), (80, 50086), (158, 25360), (160, 25043), (316, 12680), (317, 12640), (395, 10144), (632, 6340), (634, 6320), (790, 5072), (1264, 3170), (1268, 3160), (1580, 2536), (1585, 2528)]