20667608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44241120

約数和(自身を除く): 23573512

約数列:

[1, 2, 4, 8, 13, 26, 37, 41, 52, 74, 82, 104, 131, 148, 164, 262, 296, 328, 481, 524, 533, 962, 1048, 1066, 1517, 1703, 1924, 2132, 3034, 3406, 3848, 4264, 4847, 5371, 6068, 6812, 9694, 10742, 12136, 13624, 19388, 19721, 21484, 38776, 39442, 42968, 63011, 69823, 78884, 126022, 139646, 157768, 198727, 252044, 279292, 397454, 504088, 558584, 794908, 1589816, 2583451, 5166902, 10333804, 20667608]

約数ペア:

[(1, 20667608), (2, 10333804), (4, 5166902), (8, 2583451), (13, 1589816), (26, 794908), (37, 558584), (41, 504088), (52, 397454), (74, 279292), (82, 252044), (104, 198727), (131, 157768), (148, 139646), (164, 126022), (262, 78884), (296, 69823), (328, 63011), (481, 42968), (524, 39442), (533, 38776), (962, 21484), (1048, 19721), (1066, 19388), (1517, 13624), (1703, 12136), (1924, 10742), (2132, 9694), (3034, 6812), (3406, 6068), (3848, 5371), (4264, 4847)]