178698260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{22171}}^1$

素因数の和:22224

約数の個数: 48

約数和(自身を含む): 417188352

約数和(自身を除く): 238490092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 22171, 44342, 88684, 110855, 221710, 288223, 443420, 576446, 687301, 1152892, 1374602, 1441115, 2749204, 2882230, 3436505, 5764460, 6873010, 8934913, 13746020, 17869826, 35739652, 44674565, 89349130, 178698260]

約数ペア:

[(1, 178698260), (2, 89349130), (4, 44674565), (5, 35739652), (10, 17869826), (13, 13746020), (20, 8934913), (26, 6873010), (31, 5764460), (52, 3436505), (62, 2882230), (65, 2749204), (124, 1441115), (130, 1374602), (155, 1152892), (260, 687301), (310, 576446), (403, 443420), (620, 288223), (806, 221710), (1612, 110855), (2015, 88684), (4030, 44342), (8060, 22171)]