408525740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{443}}^1\times {\mathrm{941}}^1$

素因数の和:1407

約数の個数: 72

約数和(自身を含む): 1001285712

約数和(自身を除く): 592759972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 443, 490, 886, 941, 980, 1772, 1882, 2215, 3101, 3764, 4430, 4705, 6202, 6587, 8860, 9410, 12404, 13174, 15505, 18820, 21707, 26348, 31010, 32935, 43414, 46109, 62020, 65870, 86828, 92218, 108535, 131740, 184436, 217070, 230545, 416863, 434140, 461090, 833726, 922180, 1667452, 2084315, 2918041, 4168630, 5836082, 8337260, 11672164, 14590205, 20426287, 29180410, 40852574, 58360820, 81705148, 102131435, 204262870, 408525740]

約数ペア:

[(1, 408525740), (2, 204262870), (4, 102131435), (5, 81705148), (7, 58360820), (10, 40852574), (14, 29180410), (20, 20426287), (28, 14590205), (35, 11672164), (49, 8337260), (70, 5836082), (98, 4168630), (140, 2918041), (196, 2084315), (245, 1667452), (443, 922180), (490, 833726), (886, 461090), (941, 434140), (980, 416863), (1772, 230545), (1882, 217070), (2215, 184436), (3101, 131740), (3764, 108535), (4430, 92218), (4705, 86828), (6202, 65870), (6587, 62020), (8860, 46109), (9410, 43414), (12404, 32935), (13174, 31010), (15505, 26348), (18820, 21707)]