28078260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66853}}^1$

素因数の和:66872

約数の個数: 48

約数和(自身を含む): 89851776

約数和(自身を除く): 61773516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66853, 133706, 200559, 267412, 334265, 401118, 467971, 668530, 802236, 935942, 1002795, 1337060, 1403913, 1871884, 2005590, 2339855, 2807826, 4011180, 4679710, 5615652, 7019565, 9359420, 14039130, 28078260]

約数ペア:

[(1, 28078260), (2, 14039130), (3, 9359420), (4, 7019565), (5, 5615652), (6, 4679710), (7, 4011180), (10, 2807826), (12, 2339855), (14, 2005590), (15, 1871884), (20, 1403913), (21, 1337060), (28, 1002795), (30, 935942), (35, 802236), (42, 668530), (60, 467971), (70, 401118), (84, 334265), (105, 267412), (140, 200559), (210, 133706), (420, 66853)]