28508060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1297}}^1$

素因数の和:1470

約数の個数: 48

約数和(自身を含む): 68908224

約数和(自身を除く): 40400164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1297, 1570, 2198, 2594, 3140, 4396, 5188, 5495, 6485, 9079, 10990, 12970, 18158, 21980, 25940, 36316, 45395, 90790, 181580, 203629, 407258, 814516, 1018145, 1425403, 2036290, 2850806, 4072580, 5701612, 7127015, 14254030, 28508060]

約数ペア:

[(1, 28508060), (2, 14254030), (4, 7127015), (5, 5701612), (7, 4072580), (10, 2850806), (14, 2036290), (20, 1425403), (28, 1018145), (35, 814516), (70, 407258), (140, 203629), (157, 181580), (314, 90790), (628, 45395), (785, 36316), (1099, 25940), (1297, 21980), (1570, 18158), (2198, 12970), (2594, 10990), (3140, 9079), (4396, 6485), (5188, 5495)]