51265760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 144

約数和(自身を含む): 152028576

約数和(自身を除く): 100762816

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, 364, 392, 416, 455, 490, 503, 520, 560, 637, 728, 784, 910, 980, 1006, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2012, 2080, 2515, 2548, 2912, 3185, 3521, 3640, 3920, 4024, 5030, 5096, 6370, 6539, 7042, 7280, 7840, 8048, 10060, 10192, 12740, 13078, 14084, 14560, 16096, 17605, 20120, 20384, 24647, 25480, 26156, 28168, 32695, 35210, 40240, 45773, 49294, 50960, 52312, 56336, 65390, 70420, 80480, 91546, 98588, 101920, 104624, 112672, 123235, 130780, 140840, 183092, 197176, 209248, 228865, 246470, 261560, 281680, 320411, 366184, 394352, 457730, 492940, 523120, 563360, 640822, 732368, 788704, 915460, 985880, 1046240, 1281644, 1464736, 1602055, 1830920, 1971760, 2563288, 3204110, 3661840, 3943520, 5126576, 6408220, 7323680, 10253152, 12816440, 25632880, 51265760]

約数ペア:

[(1, 51265760), (2, 25632880), (4, 12816440), (5, 10253152), (7, 7323680), (8, 6408220), (10, 5126576), (13, 3943520), (14, 3661840), (16, 3204110), (20, 2563288), (26, 1971760), (28, 1830920), (32, 1602055), (35, 1464736), (40, 1281644), (49, 1046240), (52, 985880), (56, 915460), (65, 788704), (70, 732368), (80, 640822), (91, 563360), (98, 523120), (104, 492940), (112, 457730), (130, 394352), (140, 366184), (160, 320411), (182, 281680), (196, 261560), (208, 246470), (224, 228865), (245, 209248), (260, 197176), (280, 183092), (364, 140840), (392, 130780), (416, 123235), (455, 112672), (490, 104624), (503, 101920), (520, 98588), (560, 91546), (637, 80480), (728, 70420), (784, 65390), (910, 56336), (980, 52312), (1006, 50960), (1040, 49294), (1120, 45773), (1274, 40240), (1456, 35210), (1568, 32695), (1820, 28168), (1960, 26156), (2012, 25480), (2080, 24647), (2515, 20384), (2548, 20120), (2912, 17605), (3185, 16096), (3521, 14560), (3640, 14084), (3920, 13078), (4024, 12740), (5030, 10192), (5096, 10060), (6370, 8048), (6539, 7840), (7042, 7280)]