28896280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 79043040

約数和(自身を除く): 50146760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 490, 641, 644, 805, 920, 980, 1127, 1282, 1288, 1610, 1960, 2254, 2564, 3205, 3220, 4487, 4508, 5128, 5635, 6410, 6440, 8974, 9016, 11270, 12820, 14743, 17948, 22435, 22540, 25640, 29486, 31409, 35896, 44870, 45080, 58972, 62818, 73715, 89740, 103201, 117944, 125636, 147430, 157045, 179480, 206402, 251272, 294860, 314090, 412804, 516005, 589720, 628180, 722407, 825608, 1032010, 1256360, 1444814, 2064020, 2889628, 3612035, 4128040, 5779256, 7224070, 14448140, 28896280]

約数ペア:

[(1, 28896280), (2, 14448140), (4, 7224070), (5, 5779256), (7, 4128040), (8, 3612035), (10, 2889628), (14, 2064020), (20, 1444814), (23, 1256360), (28, 1032010), (35, 825608), (40, 722407), (46, 628180), (49, 589720), (56, 516005), (70, 412804), (92, 314090), (98, 294860), (115, 251272), (140, 206402), (161, 179480), (184, 157045), (196, 147430), (230, 125636), (245, 117944), (280, 103201), (322, 89740), (392, 73715), (460, 62818), (490, 58972), (641, 45080), (644, 44870), (805, 35896), (920, 31409), (980, 29486), (1127, 25640), (1282, 22540), (1288, 22435), (1610, 17948), (1960, 14743), (2254, 12820), (2564, 11270), (3205, 9016), (3220, 8974), (4487, 6440), (4508, 6410), (5128, 5635)]