1620199405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{2293}}^1$

素因数の和:2781

約数の個数: 32

約数和(自身を含む): 2200037760

約数和(自身を除く): 579838355

約数列:

[1, 5, 11, 29, 55, 145, 319, 443, 1595, 2215, 2293, 4873, 11465, 12847, 24365, 25223, 64235, 66497, 126115, 141317, 332485, 706585, 731467, 1015799, 3657335, 5078995, 11173789, 29458171, 55868945, 147290855, 324039881, 1620199405]

約数ペア:

[(1, 1620199405), (5, 324039881), (11, 147290855), (29, 55868945), (55, 29458171), (145, 11173789), (319, 5078995), (443, 3657335), (1595, 1015799), (2215, 731467), (2293, 706585), (4873, 332485), (11465, 141317), (12847, 126115), (24365, 66497), (25223, 64235)]