21780453640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49501031}}^1$

素因数の和:49501053

約数の個数: 32

約数和(自身を含む): 53461114560

約数和(自身を除く): 31680660920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49501031, 99002062, 198004124, 247505155, 396008248, 495010310, 544511341, 990020620, 1089022682, 1980041240, 2178045364, 2722556705, 4356090728, 5445113410, 10890226820, 21780453640]

約数ペア:

[(1, 21780453640), (2, 10890226820), (4, 5445113410), (5, 4356090728), (8, 2722556705), (10, 2178045364), (11, 1980041240), (20, 1089022682), (22, 990020620), (40, 544511341), (44, 495010310), (55, 396008248), (88, 247505155), (110, 198004124), (220, 99002062), (440, 49501031)]