38979640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 111974400

約数和(自身を除く): 72994760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 431, 476, 532, 595, 646, 665, 680, 760, 862, 952, 1064, 1190, 1292, 1330, 1615, 1724, 2155, 2261, 2380, 2584, 2660, 3017, 3230, 3448, 4310, 4522, 4760, 5320, 6034, 6460, 7327, 8189, 8620, 9044, 11305, 12068, 12920, 14654, 15085, 16378, 17240, 18088, 22610, 24136, 29308, 30170, 32756, 36635, 40945, 45220, 51289, 57323, 58616, 60340, 65512, 73270, 81890, 90440, 102578, 114646, 120680, 139213, 146540, 163780, 205156, 229292, 256445, 278426, 286615, 293080, 327560, 410312, 458584, 512890, 556852, 573230, 696065, 974491, 1025780, 1113704, 1146460, 1392130, 1948982, 2051560, 2292920, 2784260, 3897964, 4872455, 5568520, 7795928, 9744910, 19489820, 38979640]

約数ペア:

[(1, 38979640), (2, 19489820), (4, 9744910), (5, 7795928), (7, 5568520), (8, 4872455), (10, 3897964), (14, 2784260), (17, 2292920), (19, 2051560), (20, 1948982), (28, 1392130), (34, 1146460), (35, 1113704), (38, 1025780), (40, 974491), (56, 696065), (68, 573230), (70, 556852), (76, 512890), (85, 458584), (95, 410312), (119, 327560), (133, 293080), (136, 286615), (140, 278426), (152, 256445), (170, 229292), (190, 205156), (238, 163780), (266, 146540), (280, 139213), (323, 120680), (340, 114646), (380, 102578), (431, 90440), (476, 81890), (532, 73270), (595, 65512), (646, 60340), (665, 58616), (680, 57323), (760, 51289), (862, 45220), (952, 40945), (1064, 36635), (1190, 32756), (1292, 30170), (1330, 29308), (1615, 24136), (1724, 22610), (2155, 18088), (2261, 17240), (2380, 16378), (2584, 15085), (2660, 14654), (3017, 12920), (3230, 12068), (3448, 11305), (4310, 9044), (4522, 8620), (4760, 8189), (5320, 7327), (6034, 6460)]