261397920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{77797}}^1$

素因数の和:77822

約数の個数: 96

約数和(自身を含む): 941044608

約数和(自身を除く): 679646688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 77797, 155594, 233391, 311188, 388985, 466782, 544579, 622376, 777970, 933564, 1089158, 1166955, 1244752, 1555940, 1633737, 1867128, 2178316, 2333910, 2489504, 2722895, 3111880, 3267474, 3734256, 4356632, 4667820, 5445790, 6223760, 6534948, 7468512, 8168685, 8713264, 9335640, 10891580, 12447520, 13069896, 16337370, 17426528, 18671280, 21783160, 26139792, 32674740, 37342560, 43566320, 52279584, 65349480, 87132640, 130698960, 261397920]

約数ペア:

[(1, 261397920), (2, 130698960), (3, 87132640), (4, 65349480), (5, 52279584), (6, 43566320), (7, 37342560), (8, 32674740), (10, 26139792), (12, 21783160), (14, 18671280), (15, 17426528), (16, 16337370), (20, 13069896), (21, 12447520), (24, 10891580), (28, 9335640), (30, 8713264), (32, 8168685), (35, 7468512), (40, 6534948), (42, 6223760), (48, 5445790), (56, 4667820), (60, 4356632), (70, 3734256), (80, 3267474), (84, 3111880), (96, 2722895), (105, 2489504), (112, 2333910), (120, 2178316), (140, 1867128), (160, 1633737), (168, 1555940), (210, 1244752), (224, 1166955), (240, 1089158), (280, 933564), (336, 777970), (420, 622376), (480, 544579), (560, 466782), (672, 388985), (840, 311188), (1120, 233391), (1680, 155594), (3360, 77797)]