256428840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1753}}^1$

素因数の和:1843

約数の個数: 128

約数和(自身を含む): 818346240

約数和(自身を除く): 561917400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 53, 60, 69, 92, 106, 115, 120, 138, 159, 184, 212, 230, 265, 276, 318, 345, 424, 460, 530, 552, 636, 690, 795, 920, 1060, 1219, 1272, 1380, 1590, 1753, 2120, 2438, 2760, 3180, 3506, 3657, 4876, 5259, 6095, 6360, 7012, 7314, 8765, 9752, 10518, 12190, 14024, 14628, 17530, 18285, 21036, 24380, 26295, 29256, 35060, 36570, 40319, 42072, 48760, 52590, 70120, 73140, 80638, 92909, 105180, 120957, 146280, 161276, 185818, 201595, 210360, 241914, 278727, 322552, 371636, 403190, 464545, 483828, 557454, 604785, 743272, 806380, 929090, 967656, 1114908, 1209570, 1393635, 1612760, 1858180, 2136907, 2229816, 2419140, 2787270, 3716360, 4273814, 4838280, 5574540, 6410721, 8547628, 10684535, 11149080, 12821442, 17095256, 21369070, 25642884, 32053605, 42738140, 51285768, 64107210, 85476280, 128214420, 256428840]

約数ペア:

[(1, 256428840), (2, 128214420), (3, 85476280), (4, 64107210), (5, 51285768), (6, 42738140), (8, 32053605), (10, 25642884), (12, 21369070), (15, 17095256), (20, 12821442), (23, 11149080), (24, 10684535), (30, 8547628), (40, 6410721), (46, 5574540), (53, 4838280), (60, 4273814), (69, 3716360), (92, 2787270), (106, 2419140), (115, 2229816), (120, 2136907), (138, 1858180), (159, 1612760), (184, 1393635), (212, 1209570), (230, 1114908), (265, 967656), (276, 929090), (318, 806380), (345, 743272), (424, 604785), (460, 557454), (530, 483828), (552, 464545), (636, 403190), (690, 371636), (795, 322552), (920, 278727), (1060, 241914), (1219, 210360), (1272, 201595), (1380, 185818), (1590, 161276), (1753, 146280), (2120, 120957), (2438, 105180), (2760, 92909), (3180, 80638), (3506, 73140), (3657, 70120), (4876, 52590), (5259, 48760), (6095, 42072), (6360, 40319), (7012, 36570), (7314, 35060), (8765, 29256), (9752, 26295), (10518, 24380), (12190, 21036), (14024, 18285), (14628, 17530)]