78126580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2749}}^1$

素因数の和:2801

約数の個数: 72

約数和(自身を含む): 197505000

約数和(自身を除く): 119378420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2749, 2842, 4060, 5498, 5684, 7105, 10996, 13745, 14210, 19243, 27490, 28420, 38486, 54980, 76972, 79721, 96215, 134701, 159442, 192430, 269402, 318884, 384860, 398605, 538804, 558047, 673505, 797210, 1116094, 1347010, 1594420, 2232188, 2694020, 2790235, 3906329, 5580470, 7812658, 11160940, 15625316, 19531645, 39063290, 78126580]

約数ペア:

[(1, 78126580), (2, 39063290), (4, 19531645), (5, 15625316), (7, 11160940), (10, 7812658), (14, 5580470), (20, 3906329), (28, 2790235), (29, 2694020), (35, 2232188), (49, 1594420), (58, 1347010), (70, 1116094), (98, 797210), (116, 673505), (140, 558047), (145, 538804), (196, 398605), (203, 384860), (245, 318884), (290, 269402), (406, 192430), (490, 159442), (580, 134701), (812, 96215), (980, 79721), (1015, 76972), (1421, 54980), (2030, 38486), (2749, 28420), (2842, 27490), (4060, 19243), (5498, 14210), (5684, 13745), (7105, 10996)]