28704195

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 54119520

約数和(自身を除く): 25415325

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 139, 195, 353, 417, 585, 695, 1059, 1251, 1765, 1807, 2085, 3177, 4589, 5295, 5421, 6255, 9035, 13767, 15885, 16263, 22945, 27105, 41301, 49067, 68835, 81315, 147201, 206505, 245335, 441603, 637871, 736005, 1913613, 2208015, 3189355, 5740839, 9568065, 28704195]

約数ペア:

[(1, 28704195), (3, 9568065), (5, 5740839), (9, 3189355), (13, 2208015), (15, 1913613), (39, 736005), (45, 637871), (65, 441603), (117, 245335), (139, 206505), (195, 147201), (353, 81315), (417, 68835), (585, 49067), (695, 41301), (1059, 27105), (1251, 22945), (1765, 16263), (1807, 15885), (2085, 13767), (3177, 9035), (4589, 6255), (5295, 5421)]