71080520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 199065600

約数和(自身を除く): 127985080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 310, 380, 431, 434, 532, 589, 620, 665, 760, 862, 868, 1064, 1085, 1178, 1240, 1330, 1724, 1736, 2155, 2170, 2356, 2660, 2945, 3017, 3448, 4123, 4310, 4340, 4712, 5320, 5890, 6034, 8189, 8246, 8620, 8680, 11780, 12068, 13361, 15085, 16378, 16492, 17240, 20615, 23560, 24136, 26722, 30170, 32756, 32984, 40945, 41230, 53444, 57323, 60340, 65512, 66805, 81890, 82460, 93527, 106888, 114646, 120680, 133610, 163780, 164920, 187054, 229292, 253859, 267220, 286615, 327560, 374108, 458584, 467635, 507718, 534440, 573230, 748216, 935270, 1015436, 1146460, 1269295, 1777013, 1870540, 2030872, 2292920, 2538590, 3554026, 3741080, 5077180, 7108052, 8885065, 10154360, 14216104, 17770130, 35540260, 71080520]

約数ペア:

[(1, 71080520), (2, 35540260), (4, 17770130), (5, 14216104), (7, 10154360), (8, 8885065), (10, 7108052), (14, 5077180), (19, 3741080), (20, 3554026), (28, 2538590), (31, 2292920), (35, 2030872), (38, 1870540), (40, 1777013), (56, 1269295), (62, 1146460), (70, 1015436), (76, 935270), (95, 748216), (124, 573230), (133, 534440), (140, 507718), (152, 467635), (155, 458584), (190, 374108), (217, 327560), (248, 286615), (266, 267220), (280, 253859), (310, 229292), (380, 187054), (431, 164920), (434, 163780), (532, 133610), (589, 120680), (620, 114646), (665, 106888), (760, 93527), (862, 82460), (868, 81890), (1064, 66805), (1085, 65512), (1178, 60340), (1240, 57323), (1330, 53444), (1724, 41230), (1736, 40945), (2155, 32984), (2170, 32756), (2356, 30170), (2660, 26722), (2945, 24136), (3017, 23560), (3448, 20615), (4123, 17240), (4310, 16492), (4340, 16378), (4712, 15085), (5320, 13361), (5890, 12068), (6034, 11780), (8189, 8680), (8246, 8620)]