20803413785

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{21383}}^1$

素因数の和:21451

約数の個数: 72

約数和(自身を含む): 33436535616

約数和(自身を除く): 12633121831

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 133, 209, 245, 361, 385, 539, 665, 931, 1045, 1463, 1805, 2527, 2695, 3971, 4655, 7315, 10241, 12635, 17689, 19855, 21383, 27797, 51205, 88445, 106915, 138985, 149681, 194579, 235213, 406277, 748405, 972895, 1047767, 1176065, 1646491, 2031385, 2843939, 4469047, 5238835, 7719263, 8232455, 11525437, 14219695, 19907573, 22345235, 31283329, 38596315, 54034841, 57627185, 84911893, 99537865, 156416645, 218983303, 270174205, 378243887, 424559465, 594383251, 1094916515, 1891219435, 2971916255, 4160682757, 20803413785]

約数ペア:

[(1, 20803413785), (5, 4160682757), (7, 2971916255), (11, 1891219435), (19, 1094916515), (35, 594383251), (49, 424559465), (55, 378243887), (77, 270174205), (95, 218983303), (133, 156416645), (209, 99537865), (245, 84911893), (361, 57627185), (385, 54034841), (539, 38596315), (665, 31283329), (931, 22345235), (1045, 19907573), (1463, 14219695), (1805, 11525437), (2527, 8232455), (2695, 7719263), (3971, 5238835), (4655, 4469047), (7315, 2843939), (10241, 2031385), (12635, 1646491), (17689, 1176065), (19855, 1047767), (21383, 972895), (27797, 748405), (51205, 406277), (88445, 235213), (106915, 194579), (138985, 149681)]