19664330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22913590

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 47, 70, 86, 94, 139, 215, 235, 278, 301, 329, 430, 470, 602, 658, 695, 973, 1390, 1505, 1645, 1946, 2021, 3010, 3290, 4042, 4865, 5977, 6533, 9730, 10105, 11954, 13066, 14147, 20210, 28294, 29885, 32665, 41839, 45731, 59770, 65330, 70735, 83678, 91462, 141470, 209195, 228655, 280919, 418390, 457310, 561838, 1404595, 1966433, 2809190, 3932866, 9832165, 19664330]

約数ペア:

[(1, 19664330), (2, 9832165), (5, 3932866), (7, 2809190), (10, 1966433), (14, 1404595), (35, 561838), (43, 457310), (47, 418390), (70, 280919), (86, 228655), (94, 209195), (139, 141470), (215, 91462), (235, 83678), (278, 70735), (301, 65330), (329, 59770), (430, 45731), (470, 41839), (602, 32665), (658, 29885), (695, 28294), (973, 20210), (1390, 14147), (1505, 13066), (1645, 11954), (1946, 10105), (2021, 9730), (3010, 6533), (3290, 5977), (4042, 4865)]