291249080

素因数分解:

$2^3\times 5^1\times {\mathrm{2503}}^1\times {\mathrm{2909}}^1$

素因数の和:5423

約数の個数: 32

約数和(自身を含む): 655797600

約数和(自身を除く): 364548520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2503, 2909, 5006, 5818, 10012, 11636, 12515, 14545, 20024, 23272, 25030, 29090, 50060, 58180, 100120, 116360, 7281227, 14562454, 29124908, 36406135, 58249816, 72812270, 145624540, 291249080]

約数ペア:

[(1, 291249080), (2, 145624540), (4, 72812270), (5, 58249816), (8, 36406135), (10, 29124908), (20, 14562454), (40, 7281227), (2503, 116360), (2909, 100120), (5006, 58180), (5818, 50060), (10012, 29090), (11636, 25030), (12515, 23272), (14545, 20024)]