19705280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:506

約数の個数: 112

約数和(自身を含む): 56570880

約数和(自身を除く): 36865600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 463, 532, 560, 608, 665, 760, 926, 1064, 1120, 1216, 1330, 1520, 1852, 2128, 2240, 2315, 2660, 3040, 3241, 3704, 4256, 4630, 5320, 6080, 6482, 7408, 8512, 8797, 9260, 10640, 12964, 14816, 16205, 17594, 18520, 21280, 25928, 29632, 32410, 35188, 37040, 42560, 43985, 51856, 61579, 64820, 70376, 74080, 87970, 103712, 123158, 129640, 140752, 148160, 175940, 207424, 246316, 259280, 281504, 307895, 351880, 492632, 518560, 563008, 615790, 703760, 985264, 1037120, 1231580, 1407520, 1970528, 2463160, 2815040, 3941056, 4926320, 9852640, 19705280]

約数ペア:

[(1, 19705280), (2, 9852640), (4, 4926320), (5, 3941056), (7, 2815040), (8, 2463160), (10, 1970528), (14, 1407520), (16, 1231580), (19, 1037120), (20, 985264), (28, 703760), (32, 615790), (35, 563008), (38, 518560), (40, 492632), (56, 351880), (64, 307895), (70, 281504), (76, 259280), (80, 246316), (95, 207424), (112, 175940), (133, 148160), (140, 140752), (152, 129640), (160, 123158), (190, 103712), (224, 87970), (266, 74080), (280, 70376), (304, 64820), (320, 61579), (380, 51856), (448, 43985), (463, 42560), (532, 37040), (560, 35188), (608, 32410), (665, 29632), (760, 25928), (926, 21280), (1064, 18520), (1120, 17594), (1216, 16205), (1330, 14816), (1520, 12964), (1852, 10640), (2128, 9260), (2240, 8797), (2315, 8512), (2660, 7408), (3040, 6482), (3241, 6080), (3704, 5320), (4256, 4630)]