81991840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3853}}^1$

素因数の和:3894

約数の個数: 96

約数和(自身を含む): 233089920

約数和(自身を除く): 151098080

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, 1064, 1120, 1330, 1520, 2128, 2660, 3040, 3853, 4256, 5320, 7706, 10640, 15412, 19265, 21280, 26971, 30824, 38530, 53942, 61648, 73207, 77060, 107884, 123296, 134855, 146414, 154120, 215768, 269710, 292828, 308240, 366035, 431536, 512449, 539420, 585656, 616480, 732070, 863072, 1024898, 1078840, 1171312, 1464140, 2049796, 2157680, 2342624, 2562245, 2928280, 4099592, 4315360, 5124490, 5856560, 8199184, 10248980, 11713120, 16398368, 20497960, 40995920, 81991840]

約数ペア:

[(1, 81991840), (2, 40995920), (4, 20497960), (5, 16398368), (7, 11713120), (8, 10248980), (10, 8199184), (14, 5856560), (16, 5124490), (19, 4315360), (20, 4099592), (28, 2928280), (32, 2562245), (35, 2342624), (38, 2157680), (40, 2049796), (56, 1464140), (70, 1171312), (76, 1078840), (80, 1024898), (95, 863072), (112, 732070), (133, 616480), (140, 585656), (152, 539420), (160, 512449), (190, 431536), (224, 366035), (266, 308240), (280, 292828), (304, 269710), (380, 215768), (532, 154120), (560, 146414), (608, 134855), (665, 123296), (760, 107884), (1064, 77060), (1120, 73207), (1330, 61648), (1520, 53942), (2128, 38530), (2660, 30824), (3040, 26971), (3853, 21280), (4256, 19265), (5320, 15412), (7706, 10640)]