99978620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{102019}}^1$

素因数の和:102042

約数の個数: 36

約数和(自身を含む): 244235880

約数和(自身を除く): 144257260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 102019, 204038, 408076, 510095, 714133, 1020190, 1428266, 2040380, 2856532, 3570665, 4998931, 7141330, 9997862, 14282660, 19995724, 24994655, 49989310, 99978620]

約数ペア:

[(1, 99978620), (2, 49989310), (4, 24994655), (5, 19995724), (7, 14282660), (10, 9997862), (14, 7141330), (20, 4998931), (28, 3570665), (35, 2856532), (49, 2040380), (70, 1428266), (98, 1020190), (140, 714133), (196, 510095), (245, 408076), (490, 204038), (980, 102019)]