28258125

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{2153}}^1$

素因数の和:2183

約数の個数: 40

約数和(自身を含む): 53832768

約数和(自身を除く): 25574643

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 625, 875, 1875, 2153, 2625, 4375, 6459, 10765, 13125, 15071, 32295, 45213, 53825, 75355, 161475, 226065, 269125, 376775, 807375, 1130325, 1345625, 1883875, 4036875, 5651625, 9419375, 28258125]

約数ペア:

[(1, 28258125), (3, 9419375), (5, 5651625), (7, 4036875), (15, 1883875), (21, 1345625), (25, 1130325), (35, 807375), (75, 376775), (105, 269125), (125, 226065), (175, 161475), (375, 75355), (525, 53825), (625, 45213), (875, 32295), (1875, 15071), (2153, 13125), (2625, 10765), (4375, 6459)]