2019220720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{38891}}^1$

素因数の和:38974

約数の個数: 80

約数和(自身を含む): 5208416640

約数和(自身を除く): 3189195920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 590, 649, 880, 944, 1180, 1298, 2360, 2596, 3245, 4720, 5192, 6490, 10384, 12980, 25960, 38891, 51920, 77782, 155564, 194455, 311128, 388910, 427801, 622256, 777820, 855602, 1555640, 1711204, 2139005, 2294569, 3111280, 3422408, 4278010, 4589138, 6844816, 8556020, 9178276, 11472845, 17112040, 18356552, 22945690, 25240259, 34224080, 36713104, 45891380, 50480518, 91782760, 100961036, 126201295, 183565520, 201922072, 252402590, 403844144, 504805180, 1009610360, 2019220720]

約数ペア:

[(1, 2019220720), (2, 1009610360), (4, 504805180), (5, 403844144), (8, 252402590), (10, 201922072), (11, 183565520), (16, 126201295), (20, 100961036), (22, 91782760), (40, 50480518), (44, 45891380), (55, 36713104), (59, 34224080), (80, 25240259), (88, 22945690), (110, 18356552), (118, 17112040), (176, 11472845), (220, 9178276), (236, 8556020), (295, 6844816), (440, 4589138), (472, 4278010), (590, 3422408), (649, 3111280), (880, 2294569), (944, 2139005), (1180, 1711204), (1298, 1555640), (2360, 855602), (2596, 777820), (3245, 622256), (4720, 427801), (5192, 388910), (6490, 311128), (10384, 194455), (12980, 155564), (25960, 77782), (38891, 51920)]