404430650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20071}}^1$

素因数の和:20127

約数の個数: 48

約数和(自身を含む): 836279808

約数和(自身を除く): 431849158

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 20071, 20150, 40142, 100355, 200710, 260923, 501775, 521846, 622201, 1003550, 1244402, 1304615, 2609230, 3111005, 6222010, 6523075, 8088613, 13046150, 15555025, 16177226, 31110050, 40443065, 80886130, 202215325, 404430650]

約数ペア:

[(1, 404430650), (2, 202215325), (5, 80886130), (10, 40443065), (13, 31110050), (25, 16177226), (26, 15555025), (31, 13046150), (50, 8088613), (62, 6523075), (65, 6222010), (130, 3111005), (155, 2609230), (310, 1304615), (325, 1244402), (403, 1003550), (650, 622201), (775, 521846), (806, 501775), (1550, 260923), (2015, 200710), (4030, 100355), (10075, 40142), (20071, 20150)]