89030020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{653}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 198758448

約数和(自身を除く): 109728428

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 401, 653, 802, 1306, 1604, 2005, 2612, 3265, 4010, 6530, 6817, 8020, 11101, 13060, 13634, 22202, 27268, 34085, 44404, 55505, 68170, 111010, 136340, 222020, 261853, 523706, 1047412, 1309265, 2618530, 4451501, 5237060, 8903002, 17806004, 22257505, 44515010, 89030020]

約数ペア:

[(1, 89030020), (2, 44515010), (4, 22257505), (5, 17806004), (10, 8903002), (17, 5237060), (20, 4451501), (34, 2618530), (68, 1309265), (85, 1047412), (170, 523706), (340, 261853), (401, 222020), (653, 136340), (802, 111010), (1306, 68170), (1604, 55505), (2005, 44404), (2612, 34085), (3265, 27268), (4010, 22202), (6530, 13634), (6817, 13060), (8020, 11101)]