20802649604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{331}}^1\times {\mathrm{1459}}^1$

素因数の和:1905

約数の個数: 72

約数和(自身を含む): 40614688800

約数和(自身を除く): 19812039196

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 331, 356, 484, 662, 979, 1324, 1459, 1958, 2918, 3641, 3916, 5836, 7282, 10769, 14564, 16049, 21538, 29459, 32098, 40051, 43076, 58918, 64196, 80102, 117836, 129851, 160204, 176539, 259702, 324049, 353078, 482929, 519404, 648098, 706156, 965858, 1296196, 1428361, 1931716, 2856722, 3564539, 5312219, 5713444, 7129078, 10624438, 14258156, 15711971, 21248876, 31423942, 42980681, 58434409, 62847884, 85961362, 116868818, 171922724, 233737636, 472787491, 945574982, 1891149964, 5200662401, 10401324802, 20802649604]

約数ペア:

[(1, 20802649604), (2, 10401324802), (4, 5200662401), (11, 1891149964), (22, 945574982), (44, 472787491), (89, 233737636), (121, 171922724), (178, 116868818), (242, 85961362), (331, 62847884), (356, 58434409), (484, 42980681), (662, 31423942), (979, 21248876), (1324, 15711971), (1459, 14258156), (1958, 10624438), (2918, 7129078), (3641, 5713444), (3916, 5312219), (5836, 3564539), (7282, 2856722), (10769, 1931716), (14564, 1428361), (16049, 1296196), (21538, 965858), (29459, 706156), (32098, 648098), (40051, 519404), (43076, 482929), (58918, 353078), (64196, 324049), (80102, 259702), (117836, 176539), (129851, 160204)]