202011920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:585

約数の個数: 120

約数和(自身を含む): 529887960

約数和(自身を除く): 327876040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 121, 164, 176, 205, 220, 242, 328, 410, 440, 451, 484, 509, 605, 656, 820, 880, 902, 968, 1018, 1210, 1640, 1804, 1936, 2036, 2255, 2420, 2545, 3280, 3608, 4072, 4510, 4840, 4961, 5090, 5599, 7216, 8144, 9020, 9680, 9922, 10180, 11198, 18040, 19844, 20360, 20869, 22396, 24805, 27995, 36080, 39688, 40720, 41738, 44792, 49610, 55990, 61589, 79376, 83476, 89584, 99220, 104345, 111980, 123178, 166952, 198440, 208690, 223960, 229559, 246356, 307945, 333904, 396880, 417380, 447920, 459118, 492712, 615890, 834760, 918236, 985424, 1147795, 1231780, 1669520, 1836472, 2295590, 2463560, 2525149, 3672944, 4591180, 4927120, 5050298, 9182360, 10100596, 12625745, 18364720, 20201192, 25251490, 40402384, 50502980, 101005960, 202011920]

約数ペア:

[(1, 202011920), (2, 101005960), (4, 50502980), (5, 40402384), (8, 25251490), (10, 20201192), (11, 18364720), (16, 12625745), (20, 10100596), (22, 9182360), (40, 5050298), (41, 4927120), (44, 4591180), (55, 3672944), (80, 2525149), (82, 2463560), (88, 2295590), (110, 1836472), (121, 1669520), (164, 1231780), (176, 1147795), (205, 985424), (220, 918236), (242, 834760), (328, 615890), (410, 492712), (440, 459118), (451, 447920), (484, 417380), (509, 396880), (605, 333904), (656, 307945), (820, 246356), (880, 229559), (902, 223960), (968, 208690), (1018, 198440), (1210, 166952), (1640, 123178), (1804, 111980), (1936, 104345), (2036, 99220), (2255, 89584), (2420, 83476), (2545, 79376), (3280, 61589), (3608, 55990), (4072, 49610), (4510, 44792), (4840, 41738), (4961, 40720), (5090, 39688), (5599, 36080), (7216, 27995), (8144, 24805), (9020, 22396), (9680, 20869), (9922, 20360), (10180, 19844), (11198, 18040)]