19984190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 17573890

約数列:

[1, 2, 5, 10, 29, 58, 137, 145, 274, 290, 503, 685, 1006, 1370, 2515, 3973, 5030, 7946, 14587, 19865, 29174, 39730, 68911, 72935, 137822, 145870, 344555, 689110, 1998419, 3996838, 9992095, 19984190]

約数ペア:

[(1, 19984190), (2, 9992095), (5, 3996838), (10, 1998419), (29, 689110), (58, 344555), (137, 145870), (145, 137822), (274, 72935), (290, 68911), (503, 39730), (685, 29174), (1006, 19865), (1370, 14587), (2515, 7946), (3973, 5030)]