28435820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8831}}^1$

素因数の和:8870

約数の個数: 48

約数和(自身を含む): 71221248

約数和(自身を除く): 42785428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 8831, 17662, 35324, 44155, 61817, 88310, 123634, 176620, 203113, 247268, 309085, 406226, 618170, 812452, 1015565, 1236340, 1421791, 2031130, 2843582, 4062260, 5687164, 7108955, 14217910, 28435820]

約数ペア:

[(1, 28435820), (2, 14217910), (4, 7108955), (5, 5687164), (7, 4062260), (10, 2843582), (14, 2031130), (20, 1421791), (23, 1236340), (28, 1015565), (35, 812452), (46, 618170), (70, 406226), (92, 309085), (115, 247268), (140, 203113), (161, 176620), (230, 123634), (322, 88310), (460, 61817), (644, 44155), (805, 35324), (1610, 17662), (3220, 8831)]