70000004920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:905

約数の個数: 128

約数和(自身を含む): 160914600000

約数和(自身を除く): 90914595080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 179, 218, 257, 349, 358, 436, 514, 545, 698, 716, 872, 895, 1028, 1090, 1285, 1396, 1432, 1745, 1790, 2056, 2180, 2570, 2792, 3490, 3580, 4360, 5140, 6980, 7160, 10280, 13960, 19511, 28013, 38041, 39022, 46003, 56026, 62471, 76082, 78044, 89693, 92006, 97555, 112052, 124942, 140065, 152164, 156088, 179386, 184012, 190205, 195110, 224104, 230015, 249884, 280130, 304328, 312355, 358772, 368024, 380410, 390220, 448465, 460030, 499768, 560260, 624710, 717544, 760820, 780440, 896930, 920060, 1120520, 1249420, 1521640, 1793860, 1840120, 2498840, 3587720, 5014327, 6809339, 9776537, 10028654, 13618678, 16055047, 19553074, 20057308, 25071635, 27237356, 32110094, 34046695, 39106148, 40114616, 48882685, 50143270, 54474712, 64220188, 68093390, 78212296, 80275235, 97765370, 100286540, 128440376, 136186780, 160550470, 195530740, 200573080, 272373560, 321100940, 391061480, 642201880, 1750000123, 3500000246, 7000000492, 8750000615, 14000000984, 17500001230, 35000002460, 70000004920]

約数ペア:

[(1, 70000004920), (2, 35000002460), (4, 17500001230), (5, 14000000984), (8, 8750000615), (10, 7000000492), (20, 3500000246), (40, 1750000123), (109, 642201880), (179, 391061480), (218, 321100940), (257, 272373560), (349, 200573080), (358, 195530740), (436, 160550470), (514, 136186780), (545, 128440376), (698, 100286540), (716, 97765370), (872, 80275235), (895, 78212296), (1028, 68093390), (1090, 64220188), (1285, 54474712), (1396, 50143270), (1432, 48882685), (1745, 40114616), (1790, 39106148), (2056, 34046695), (2180, 32110094), (2570, 27237356), (2792, 25071635), (3490, 20057308), (3580, 19553074), (4360, 16055047), (5140, 13618678), (6980, 10028654), (7160, 9776537), (10280, 6809339), (13960, 5014327), (19511, 3587720), (28013, 2498840), (38041, 1840120), (39022, 1793860), (46003, 1521640), (56026, 1249420), (62471, 1120520), (76082, 920060), (78044, 896930), (89693, 780440), (92006, 760820), (97555, 717544), (112052, 624710), (124942, 560260), (140065, 499768), (152164, 460030), (156088, 448465), (179386, 390220), (184012, 380410), (190205, 368024), (195110, 358772), (224104, 312355), (230015, 304328), (249884, 280130)]