19218320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21839}}^1$

素因数の和:21863

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 29528560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21839, 43678, 87356, 109195, 174712, 218390, 240229, 349424, 436780, 480458, 873560, 960916, 1201145, 1747120, 1921832, 2402290, 3843664, 4804580, 9609160, 19218320]

約数ペア:

[(1, 19218320), (2, 9609160), (4, 4804580), (5, 3843664), (8, 2402290), (10, 1921832), (11, 1747120), (16, 1201145), (20, 960916), (22, 873560), (40, 480458), (44, 436780), (55, 349424), (80, 240229), (88, 218390), (110, 174712), (176, 109195), (220, 87356), (440, 43678), (880, 21839)]