20368570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21103430

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 59, 79, 95, 115, 118, 158, 190, 230, 295, 395, 437, 590, 790, 874, 1121, 1357, 1501, 1817, 2185, 2242, 2714, 3002, 3634, 4370, 4661, 5605, 6785, 7505, 9085, 9322, 11210, 13570, 15010, 18170, 23305, 25783, 34523, 46610, 51566, 69046, 88559, 107203, 128915, 172615, 177118, 214406, 257830, 345230, 442795, 536015, 885590, 1072030, 2036857, 4073714, 10184285, 20368570]

約数ペア:

[(1, 20368570), (2, 10184285), (5, 4073714), (10, 2036857), (19, 1072030), (23, 885590), (38, 536015), (46, 442795), (59, 345230), (79, 257830), (95, 214406), (115, 177118), (118, 172615), (158, 128915), (190, 107203), (230, 88559), (295, 69046), (395, 51566), (437, 46610), (590, 34523), (790, 25783), (874, 23305), (1121, 18170), (1357, 15010), (1501, 13570), (1817, 11210), (2185, 9322), (2242, 9085), (2714, 7505), (3002, 6785), (3634, 5605), (4370, 4661)]