318705920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 834442560

約数和(自身を除く): 515736640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 107, 128, 130, 160, 179, 208, 214, 256, 260, 320, 358, 416, 428, 520, 535, 640, 716, 832, 856, 895, 1040, 1070, 1280, 1391, 1432, 1664, 1712, 1790, 2080, 2140, 2327, 2782, 2864, 3328, 3424, 3580, 4160, 4280, 4654, 5564, 5728, 6848, 6955, 7160, 8320, 8560, 9308, 11128, 11456, 11635, 13696, 13910, 14320, 16640, 17120, 18616, 19153, 22256, 22912, 23270, 27392, 27820, 28640, 34240, 37232, 38306, 44512, 45824, 46540, 55640, 57280, 68480, 74464, 76612, 89024, 93080, 95765, 111280, 114560, 136960, 148928, 153224, 178048, 186160, 191530, 222560, 229120, 248989, 297856, 306448, 356096, 372320, 383060, 445120, 497978, 595712, 612896, 744640, 766120, 890240, 995956, 1225792, 1244945, 1489280, 1532240, 1780480, 1991912, 2451584, 2489890, 2978560, 3064480, 3983824, 4903168, 4979780, 6128960, 7967648, 9959560, 12257920, 15935296, 19919120, 24515840, 31870592, 39838240, 63741184, 79676480, 159352960, 318705920]

約数ペア:

[(1, 318705920), (2, 159352960), (4, 79676480), (5, 63741184), (8, 39838240), (10, 31870592), (13, 24515840), (16, 19919120), (20, 15935296), (26, 12257920), (32, 9959560), (40, 7967648), (52, 6128960), (64, 4979780), (65, 4903168), (80, 3983824), (104, 3064480), (107, 2978560), (128, 2489890), (130, 2451584), (160, 1991912), (179, 1780480), (208, 1532240), (214, 1489280), (256, 1244945), (260, 1225792), (320, 995956), (358, 890240), (416, 766120), (428, 744640), (520, 612896), (535, 595712), (640, 497978), (716, 445120), (832, 383060), (856, 372320), (895, 356096), (1040, 306448), (1070, 297856), (1280, 248989), (1391, 229120), (1432, 222560), (1664, 191530), (1712, 186160), (1790, 178048), (2080, 153224), (2140, 148928), (2327, 136960), (2782, 114560), (2864, 111280), (3328, 95765), (3424, 93080), (3580, 89024), (4160, 76612), (4280, 74464), (4654, 68480), (5564, 57280), (5728, 55640), (6848, 46540), (6955, 45824), (7160, 44512), (8320, 38306), (8560, 37232), (9308, 34240), (11128, 28640), (11456, 27820), (11635, 27392), (13696, 23270), (13910, 22912), (14320, 22256), (16640, 19153), (17120, 18616)]