19703220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{607}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 55362048

約数和(自身を除く): 35658828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 541, 607, 1082, 1214, 1623, 1821, 2164, 2428, 2705, 3035, 3246, 3642, 5410, 6070, 6492, 7284, 8115, 9105, 10820, 12140, 16230, 18210, 32460, 36420, 328387, 656774, 985161, 1313548, 1641935, 1970322, 3283870, 3940644, 4925805, 6567740, 9851610, 19703220]

約数ペア:

[(1, 19703220), (2, 9851610), (3, 6567740), (4, 4925805), (5, 3940644), (6, 3283870), (10, 1970322), (12, 1641935), (15, 1313548), (20, 985161), (30, 656774), (60, 328387), (541, 36420), (607, 32460), (1082, 18210), (1214, 16230), (1623, 12140), (1821, 10820), (2164, 9105), (2428, 8115), (2705, 7284), (3035, 6492), (3246, 6070), (3642, 5410)]