64945920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1301}}^1$

素因数の和:1338

約数の個数: 144

約数和(自身を含む): 223548192

約数和(自身を除く): 158602272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1301, 1560, 1664, 1920, 2080, 2496, 2602, 3120, 3328, 3840, 3903, 4160, 4992, 5204, 6240, 6505, 7806, 8320, 9984, 10408, 12480, 13010, 15612, 16640, 16913, 19515, 20816, 24960, 26020, 31224, 33826, 39030, 41632, 49920, 50739, 52040, 62448, 67652, 78060, 83264, 84565, 101478, 104080, 124896, 135304, 156120, 166528, 169130, 202956, 208160, 249792, 253695, 270608, 312240, 333056, 338260, 405912, 416320, 499584, 507390, 541216, 624480, 676520, 811824, 832640, 999168, 1014780, 1082432, 1248960, 1353040, 1623648, 1665280, 2029560, 2164864, 2497920, 2706080, 3247296, 4059120, 4329728, 4995840, 5412160, 6494592, 8118240, 10824320, 12989184, 16236480, 21648640, 32472960, 64945920]

約数ペア:

[(1, 64945920), (2, 32472960), (3, 21648640), (4, 16236480), (5, 12989184), (6, 10824320), (8, 8118240), (10, 6494592), (12, 5412160), (13, 4995840), (15, 4329728), (16, 4059120), (20, 3247296), (24, 2706080), (26, 2497920), (30, 2164864), (32, 2029560), (39, 1665280), (40, 1623648), (48, 1353040), (52, 1248960), (60, 1082432), (64, 1014780), (65, 999168), (78, 832640), (80, 811824), (96, 676520), (104, 624480), (120, 541216), (128, 507390), (130, 499584), (156, 416320), (160, 405912), (192, 338260), (195, 333056), (208, 312240), (240, 270608), (256, 253695), (260, 249792), (312, 208160), (320, 202956), (384, 169130), (390, 166528), (416, 156120), (480, 135304), (520, 124896), (624, 104080), (640, 101478), (768, 84565), (780, 83264), (832, 78060), (960, 67652), (1040, 62448), (1248, 52040), (1280, 50739), (1301, 49920), (1560, 41632), (1664, 39030), (1920, 33826), (2080, 31224), (2496, 26020), (2602, 24960), (3120, 20816), (3328, 19515), (3840, 16913), (3903, 16640), (4160, 15612), (4992, 13010), (5204, 12480), (6240, 10408), (6505, 9984), (7806, 8320)]