205011820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 483166656

約数和(自身を除く): 278154836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 101, 130, 148, 185, 202, 211, 260, 370, 404, 422, 481, 505, 740, 844, 962, 1010, 1055, 1313, 1924, 2020, 2110, 2405, 2626, 2743, 3737, 4220, 4810, 5252, 5486, 6565, 7474, 7807, 9620, 10972, 13130, 13715, 14948, 15614, 18685, 21311, 26260, 27430, 31228, 37370, 39035, 42622, 48581, 54860, 74740, 78070, 85244, 97162, 101491, 106555, 156140, 194324, 202982, 213110, 242905, 277043, 405964, 426220, 485810, 507455, 554086, 788507, 971620, 1014910, 1108172, 1385215, 1577014, 2029820, 2770430, 3154028, 3942535, 5540860, 7885070, 10250591, 15770140, 20501182, 41002364, 51252955, 102505910, 205011820]

約数ペア:

[(1, 205011820), (2, 102505910), (4, 51252955), (5, 41002364), (10, 20501182), (13, 15770140), (20, 10250591), (26, 7885070), (37, 5540860), (52, 3942535), (65, 3154028), (74, 2770430), (101, 2029820), (130, 1577014), (148, 1385215), (185, 1108172), (202, 1014910), (211, 971620), (260, 788507), (370, 554086), (404, 507455), (422, 485810), (481, 426220), (505, 405964), (740, 277043), (844, 242905), (962, 213110), (1010, 202982), (1055, 194324), (1313, 156140), (1924, 106555), (2020, 101491), (2110, 97162), (2405, 85244), (2626, 78070), (2743, 74740), (3737, 54860), (4220, 48581), (4810, 42622), (5252, 39035), (5486, 37370), (6565, 31228), (7474, 27430), (7807, 26260), (9620, 21311), (10972, 18685), (13130, 15614), (13715, 14948)]