4487990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 9676800

約数和(自身を除く): 5188810

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 79, 95, 115, 130, 158, 190, 230, 247, 299, 395, 437, 494, 598, 790, 874, 1027, 1235, 1495, 1501, 1817, 2054, 2185, 2470, 2990, 3002, 3634, 4370, 5135, 5681, 7505, 9085, 10270, 11362, 15010, 18170, 19513, 23621, 28405, 34523, 39026, 47242, 56810, 69046, 97565, 118105, 172615, 195130, 236210, 345230, 448799, 897598, 2243995, 4487990]

約数ペア:

[(1, 4487990), (2, 2243995), (5, 897598), (10, 448799), (13, 345230), (19, 236210), (23, 195130), (26, 172615), (38, 118105), (46, 97565), (65, 69046), (79, 56810), (95, 47242), (115, 39026), (130, 34523), (158, 28405), (190, 23621), (230, 19513), (247, 18170), (299, 15010), (395, 11362), (437, 10270), (494, 9085), (598, 7505), (790, 5681), (874, 5135), (1027, 4370), (1235, 3634), (1495, 3002), (1501, 2990), (1817, 2470), (2054, 2185)]