20218111970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{209449}}^1$

素因数の和:209667

約数の個数: 48

約数和(自身を含む): 42549348600

約数和(自身を除く): 22331236630

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 197, 245, 394, 490, 985, 1379, 1970, 2758, 6895, 9653, 13790, 19306, 48265, 96530, 209449, 418898, 1047245, 1466143, 2094490, 2932286, 7330715, 10263001, 14661430, 20526002, 41261453, 51315005, 82522906, 102630010, 206307265, 288830171, 412614530, 577660342, 1444150855, 2021811197, 2888301710, 4043622394, 10109055985, 20218111970]

約数ペア:

[(1, 20218111970), (2, 10109055985), (5, 4043622394), (7, 2888301710), (10, 2021811197), (14, 1444150855), (35, 577660342), (49, 412614530), (70, 288830171), (98, 206307265), (197, 102630010), (245, 82522906), (394, 51315005), (490, 41261453), (985, 20526002), (1379, 14661430), (1970, 10263001), (2758, 7330715), (6895, 2932286), (9653, 2094490), (13790, 1466143), (19306, 1047245), (48265, 418898), (96530, 209449)]