68880840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1971

約数の個数: 128

約数和(自身を含む): 241781760

約数和(自身を除く): 172900920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 840, 860, 903, 1032, 1204, 1290, 1505, 1720, 1806, 1907, 2408, 2580, 3010, 3612, 3814, 4515, 5160, 5721, 6020, 7224, 7628, 9030, 9535, 11442, 12040, 13349, 15256, 18060, 19070, 22884, 26698, 28605, 36120, 38140, 40047, 45768, 53396, 57210, 66745, 76280, 80094, 82001, 106792, 114420, 133490, 160188, 164002, 200235, 228840, 246003, 266980, 320376, 328004, 400470, 410005, 492006, 533960, 574007, 656008, 800940, 820010, 984012, 1148014, 1230015, 1601880, 1640020, 1722021, 1968024, 2296028, 2460030, 2870035, 3280040, 3444042, 4592056, 4920060, 5740070, 6888084, 8610105, 9840120, 11480140, 13776168, 17220210, 22960280, 34440420, 68880840]

約数ペア:

[(1, 68880840), (2, 34440420), (3, 22960280), (4, 17220210), (5, 13776168), (6, 11480140), (7, 9840120), (8, 8610105), (10, 6888084), (12, 5740070), (14, 4920060), (15, 4592056), (20, 3444042), (21, 3280040), (24, 2870035), (28, 2460030), (30, 2296028), (35, 1968024), (40, 1722021), (42, 1640020), (43, 1601880), (56, 1230015), (60, 1148014), (70, 984012), (84, 820010), (86, 800940), (105, 656008), (120, 574007), (129, 533960), (140, 492006), (168, 410005), (172, 400470), (210, 328004), (215, 320376), (258, 266980), (280, 246003), (301, 228840), (344, 200235), (420, 164002), (430, 160188), (516, 133490), (602, 114420), (645, 106792), (840, 82001), (860, 80094), (903, 76280), (1032, 66745), (1204, 57210), (1290, 53396), (1505, 45768), (1720, 40047), (1806, 38140), (1907, 36120), (2408, 28605), (2580, 26698), (3010, 22884), (3612, 19070), (3814, 18060), (4515, 15256), (5160, 13349), (5721, 12040), (6020, 11442), (7224, 9535), (7628, 9030)]