1280490728

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{77813}}^1$

素因数の和:77858

約数の個数: 48

約数和(自身を含む): 2794300740

約数和(自身を除く): 1513810012

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 121, 136, 187, 242, 374, 484, 748, 968, 1496, 2057, 4114, 8228, 16456, 77813, 155626, 311252, 622504, 855943, 1322821, 1711886, 2645642, 3423772, 5291284, 6847544, 9415373, 10582568, 14551031, 18830746, 29102062, 37661492, 58204124, 75322984, 116408248, 160061341, 320122682, 640245364, 1280490728]

約数ペア:

[(1, 1280490728), (2, 640245364), (4, 320122682), (8, 160061341), (11, 116408248), (17, 75322984), (22, 58204124), (34, 37661492), (44, 29102062), (68, 18830746), (88, 14551031), (121, 10582568), (136, 9415373), (187, 6847544), (242, 5291284), (374, 3423772), (484, 2645642), (748, 1711886), (968, 1322821), (1496, 855943), (2057, 622504), (4114, 311252), (8228, 155626), (16456, 77813)]