38818780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 111809376

約数和(自身を除く): 72990596

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 277, 286, 308, 364, 385, 455, 490, 539, 554, 572, 637, 715, 770, 910, 980, 1001, 1078, 1108, 1274, 1385, 1430, 1540, 1820, 1939, 2002, 2156, 2548, 2695, 2770, 2860, 3047, 3185, 3601, 3878, 4004, 5005, 5390, 5540, 6094, 6370, 7007, 7202, 7756, 9695, 10010, 10780, 12188, 12740, 13573, 14014, 14404, 15235, 18005, 19390, 20020, 21329, 25207, 27146, 28028, 30470, 35035, 36010, 38780, 39611, 42658, 50414, 54292, 60940, 67865, 70070, 72020, 79222, 85316, 100828, 106645, 126035, 135730, 140140, 149303, 158444, 176449, 198055, 213290, 252070, 271460, 277277, 298606, 352898, 396110, 426580, 504140, 554554, 597212, 705796, 746515, 792220, 882245, 1109108, 1386385, 1493030, 1764490, 1940939, 2772770, 2986060, 3528980, 3881878, 5545540, 7763756, 9704695, 19409390, 38818780]

約数ペア:

[(1, 38818780), (2, 19409390), (4, 9704695), (5, 7763756), (7, 5545540), (10, 3881878), (11, 3528980), (13, 2986060), (14, 2772770), (20, 1940939), (22, 1764490), (26, 1493030), (28, 1386385), (35, 1109108), (44, 882245), (49, 792220), (52, 746515), (55, 705796), (65, 597212), (70, 554554), (77, 504140), (91, 426580), (98, 396110), (110, 352898), (130, 298606), (140, 277277), (143, 271460), (154, 252070), (182, 213290), (196, 198055), (220, 176449), (245, 158444), (260, 149303), (277, 140140), (286, 135730), (308, 126035), (364, 106645), (385, 100828), (455, 85316), (490, 79222), (539, 72020), (554, 70070), (572, 67865), (637, 60940), (715, 54292), (770, 50414), (910, 42658), (980, 39611), (1001, 38780), (1078, 36010), (1108, 35035), (1274, 30470), (1385, 28028), (1430, 27146), (1540, 25207), (1820, 21329), (1939, 20020), (2002, 19390), (2156, 18005), (2548, 15235), (2695, 14404), (2770, 14014), (2860, 13573), (3047, 12740), (3185, 12188), (3601, 10780), (3878, 10010), (4004, 9695), (5005, 7756), (5390, 7202), (5540, 7007), (6094, 6370)]