201019720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{1013}}^1$

素因数の和:1087

約数の個数: 96

約数和(自身を含む): 509778360

約数和(自身を除く): 308758640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 121, 164, 205, 220, 242, 328, 410, 440, 451, 484, 605, 820, 902, 968, 1013, 1210, 1640, 1804, 2026, 2255, 2420, 3608, 4052, 4510, 4840, 4961, 5065, 8104, 9020, 9922, 10130, 11143, 18040, 19844, 20260, 22286, 24805, 39688, 40520, 41533, 44572, 49610, 55715, 83066, 89144, 99220, 111430, 122573, 166132, 198440, 207665, 222860, 245146, 332264, 415330, 445720, 456863, 490292, 612865, 830660, 913726, 980584, 1225730, 1661320, 1827452, 2284315, 2451460, 3654904, 4568630, 4902920, 5025493, 9137260, 10050986, 18274520, 20101972, 25127465, 40203944, 50254930, 100509860, 201019720]

約数ペア:

[(1, 201019720), (2, 100509860), (4, 50254930), (5, 40203944), (8, 25127465), (10, 20101972), (11, 18274520), (20, 10050986), (22, 9137260), (40, 5025493), (41, 4902920), (44, 4568630), (55, 3654904), (82, 2451460), (88, 2284315), (110, 1827452), (121, 1661320), (164, 1225730), (205, 980584), (220, 913726), (242, 830660), (328, 612865), (410, 490292), (440, 456863), (451, 445720), (484, 415330), (605, 332264), (820, 245146), (902, 222860), (968, 207665), (1013, 198440), (1210, 166132), (1640, 122573), (1804, 111430), (2026, 99220), (2255, 89144), (2420, 83066), (3608, 55715), (4052, 49610), (4510, 44572), (4840, 41533), (4961, 40520), (5065, 39688), (8104, 24805), (9020, 22286), (9922, 20260), (10130, 19844), (11143, 18040)]