406222940

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{18617}}^1$

素因数の和:19717

約数の個数: 24

約数和(自身を含む): 853895952

約数和(自身を除く): 447673012

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 4364, 5455, 10910, 18617, 21820, 37234, 74468, 93085, 186170, 372340, 20311147, 40622294, 81244588, 101555735, 203111470, 406222940]

約数ペア:

[(1, 406222940), (2, 203111470), (4, 101555735), (5, 81244588), (10, 40622294), (20, 20311147), (1091, 372340), (2182, 186170), (4364, 93085), (5455, 74468), (10910, 37234), (18617, 21820)]