20403976340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2506631}}^1$

素因数の和:2506688

約数の個数: 48

約数和(自身を含む): 48007016064

約数和(自身を除く): 27603039724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 2506631, 5013262, 10026524, 12533155, 25066310, 27572941, 50132620, 55145882, 92745347, 110291764, 137864705, 185490694, 275729410, 370981388, 463726735, 551458820, 927453470, 1020198817, 1854906940, 2040397634, 4080795268, 5100994085, 10201988170, 20403976340]

約数ペア:

[(1, 20403976340), (2, 10201988170), (4, 5100994085), (5, 4080795268), (10, 2040397634), (11, 1854906940), (20, 1020198817), (22, 927453470), (37, 551458820), (44, 463726735), (55, 370981388), (74, 275729410), (110, 185490694), (148, 137864705), (185, 110291764), (220, 92745347), (370, 55145882), (407, 50132620), (740, 27572941), (814, 25066310), (1628, 12533155), (2035, 10026524), (4070, 5013262), (8140, 2506631)]