81719220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123817}}^1$

素因数の和:123840

約数の個数: 48

約数和(自身を含む): 249617088

約数和(自身を除く): 167897868

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 123817, 247634, 371451, 495268, 619085, 742902, 1238170, 1361987, 1485804, 1857255, 2476340, 2723974, 3714510, 4085961, 5447948, 6809935, 7429020, 8171922, 13619870, 16343844, 20429805, 27239740, 40859610, 81719220]

約数ペア:

[(1, 81719220), (2, 40859610), (3, 27239740), (4, 20429805), (5, 16343844), (6, 13619870), (10, 8171922), (11, 7429020), (12, 6809935), (15, 5447948), (20, 4085961), (22, 3714510), (30, 2723974), (33, 2476340), (44, 1857255), (55, 1485804), (60, 1361987), (66, 1238170), (110, 742902), (132, 619085), (165, 495268), (220, 371451), (330, 247634), (660, 123817)]