31289440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:349

約数の個数: 144

約数和(自身を含む): 92906352

約数和(自身を除く): 61616912

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 307, 364, 392, 416, 455, 490, 520, 560, 614, 637, 728, 784, 910, 980, 1040, 1120, 1228, 1274, 1456, 1535, 1568, 1820, 1960, 2080, 2149, 2456, 2548, 2912, 3070, 3185, 3640, 3920, 3991, 4298, 4912, 5096, 6140, 6370, 7280, 7840, 7982, 8596, 9824, 10192, 10745, 12280, 12740, 14560, 15043, 15964, 17192, 19955, 20384, 21490, 24560, 25480, 27937, 30086, 31928, 34384, 39910, 42980, 49120, 50960, 55874, 60172, 63856, 68768, 75215, 79820, 85960, 101920, 111748, 120344, 127712, 139685, 150430, 159640, 171920, 195559, 223496, 240688, 279370, 300860, 319280, 343840, 391118, 446992, 481376, 558740, 601720, 638560, 782236, 893984, 977795, 1117480, 1203440, 1564472, 1955590, 2234960, 2406880, 3128944, 3911180, 4469920, 6257888, 7822360, 15644720, 31289440]

約数ペア:

[(1, 31289440), (2, 15644720), (4, 7822360), (5, 6257888), (7, 4469920), (8, 3911180), (10, 3128944), (13, 2406880), (14, 2234960), (16, 1955590), (20, 1564472), (26, 1203440), (28, 1117480), (32, 977795), (35, 893984), (40, 782236), (49, 638560), (52, 601720), (56, 558740), (65, 481376), (70, 446992), (80, 391118), (91, 343840), (98, 319280), (104, 300860), (112, 279370), (130, 240688), (140, 223496), (160, 195559), (182, 171920), (196, 159640), (208, 150430), (224, 139685), (245, 127712), (260, 120344), (280, 111748), (307, 101920), (364, 85960), (392, 79820), (416, 75215), (455, 68768), (490, 63856), (520, 60172), (560, 55874), (614, 50960), (637, 49120), (728, 42980), (784, 39910), (910, 34384), (980, 31928), (1040, 30086), (1120, 27937), (1228, 25480), (1274, 24560), (1456, 21490), (1535, 20384), (1568, 19955), (1820, 17192), (1960, 15964), (2080, 15043), (2149, 14560), (2456, 12740), (2548, 12280), (2912, 10745), (3070, 10192), (3185, 9824), (3640, 8596), (3920, 7982), (3991, 7840), (4298, 7280), (4912, 6370), (5096, 6140)]