19199987180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1103}}^1\times {\mathrm{7193}}^1$

素因数の和:8327

約数の個数: 72

約数和(自身を含む): 44364995136

約数和(自身を除く): 25165007956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1103, 1210, 2206, 2420, 4412, 5515, 7193, 11030, 12133, 14386, 22060, 24266, 28772, 35965, 48532, 60665, 71930, 79123, 121330, 133463, 143860, 158246, 242660, 266926, 316492, 395615, 533852, 667315, 791230, 870353, 1334630, 1582460, 1740706, 2669260, 3481412, 4351765, 7933879, 8703530, 15867758, 17407060, 31735516, 39669395, 79338790, 87272669, 158677580, 174545338, 349090676, 436363345, 872726690, 959999359, 1745453380, 1919998718, 3839997436, 4799996795, 9599993590, 19199987180]

約数ペア:

[(1, 19199987180), (2, 9599993590), (4, 4799996795), (5, 3839997436), (10, 1919998718), (11, 1745453380), (20, 959999359), (22, 872726690), (44, 436363345), (55, 349090676), (110, 174545338), (121, 158677580), (220, 87272669), (242, 79338790), (484, 39669395), (605, 31735516), (1103, 17407060), (1210, 15867758), (2206, 8703530), (2420, 7933879), (4412, 4351765), (5515, 3481412), (7193, 2669260), (11030, 1740706), (12133, 1582460), (14386, 1334630), (22060, 870353), (24266, 791230), (28772, 667315), (35965, 533852), (48532, 395615), (60665, 316492), (71930, 266926), (79123, 242660), (121330, 158246), (133463, 143860)]