64420720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8849}}^1$

素因数の和:8882

約数の個数: 80

約数和(自身を含む): 184363200

約数和(自身を除く): 119942480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 8849, 17698, 35396, 44245, 61943, 70792, 88490, 115037, 123886, 141584, 176980, 230074, 247772, 309715, 353960, 460148, 495544, 575185, 619430, 707920, 805259, 920296, 991088, 1150370, 1238860, 1610518, 1840592, 2300740, 2477720, 3221036, 4026295, 4601480, 4955440, 6442072, 8052590, 9202960, 12884144, 16105180, 32210360, 64420720]

約数ペア:

[(1, 64420720), (2, 32210360), (4, 16105180), (5, 12884144), (7, 9202960), (8, 8052590), (10, 6442072), (13, 4955440), (14, 4601480), (16, 4026295), (20, 3221036), (26, 2477720), (28, 2300740), (35, 1840592), (40, 1610518), (52, 1238860), (56, 1150370), (65, 991088), (70, 920296), (80, 805259), (91, 707920), (104, 619430), (112, 575185), (130, 495544), (140, 460148), (182, 353960), (208, 309715), (260, 247772), (280, 230074), (364, 176980), (455, 141584), (520, 123886), (560, 115037), (728, 88490), (910, 70792), (1040, 61943), (1456, 44245), (1820, 35396), (3640, 17698), (7280, 8849)]