21684320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1$

素因数の和:1060

約数の個数: 96

約数和(自身を含む): 61689600

約数和(自身を除く): 40005280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1019, 1064, 1120, 1330, 1520, 2038, 2128, 2660, 3040, 4076, 4256, 5095, 5320, 7133, 8152, 10190, 10640, 14266, 16304, 19361, 20380, 21280, 28532, 32608, 35665, 38722, 40760, 57064, 71330, 77444, 81520, 96805, 114128, 135527, 142660, 154888, 163040, 193610, 228256, 271054, 285320, 309776, 387220, 542108, 570640, 619552, 677635, 774440, 1084216, 1141280, 1355270, 1548880, 2168432, 2710540, 3097760, 4336864, 5421080, 10842160, 21684320]

約数ペア:

[(1, 21684320), (2, 10842160), (4, 5421080), (5, 4336864), (7, 3097760), (8, 2710540), (10, 2168432), (14, 1548880), (16, 1355270), (19, 1141280), (20, 1084216), (28, 774440), (32, 677635), (35, 619552), (38, 570640), (40, 542108), (56, 387220), (70, 309776), (76, 285320), (80, 271054), (95, 228256), (112, 193610), (133, 163040), (140, 154888), (152, 142660), (160, 135527), (190, 114128), (224, 96805), (266, 81520), (280, 77444), (304, 71330), (380, 57064), (532, 40760), (560, 38722), (608, 35665), (665, 32608), (760, 28532), (1019, 21280), (1064, 20380), (1120, 19361), (1330, 16304), (1520, 14266), (2038, 10640), (2128, 10190), (2660, 8152), (3040, 7133), (4076, 5320), (4256, 5095)]