199440680

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{21773}}^1$

素因数の和:22013

約数の個数: 32

約数和(自身を含む): 450721800

約数和(自身を除く): 251281120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 21773, 43546, 87092, 108865, 174184, 217730, 435460, 870920, 4986017, 9972034, 19944068, 24930085, 39888136, 49860170, 99720340, 199440680]

約数ペア:

[(1, 199440680), (2, 99720340), (4, 49860170), (5, 39888136), (8, 24930085), (10, 19944068), (20, 9972034), (40, 4986017), (229, 870920), (458, 435460), (916, 217730), (1145, 174184), (1832, 108865), (2290, 87092), (4580, 43546), (9160, 21773)]