68869040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:750

約数の個数: 80

約数和(自身を含む): 171953280

約数和(自身を除く): 103084240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 79, 80, 85, 136, 158, 170, 272, 316, 340, 395, 632, 641, 680, 790, 1264, 1282, 1343, 1360, 1580, 2564, 2686, 3160, 3205, 5128, 5372, 6320, 6410, 6715, 10256, 10744, 10897, 12820, 13430, 21488, 21794, 25640, 26860, 43588, 50639, 51280, 53720, 54485, 87176, 101278, 107440, 108970, 174352, 202556, 217940, 253195, 405112, 435880, 506390, 810224, 860863, 871760, 1012780, 1721726, 2025560, 3443452, 4051120, 4304315, 6886904, 8608630, 13773808, 17217260, 34434520, 68869040]

約数ペア:

[(1, 68869040), (2, 34434520), (4, 17217260), (5, 13773808), (8, 8608630), (10, 6886904), (16, 4304315), (17, 4051120), (20, 3443452), (34, 2025560), (40, 1721726), (68, 1012780), (79, 871760), (80, 860863), (85, 810224), (136, 506390), (158, 435880), (170, 405112), (272, 253195), (316, 217940), (340, 202556), (395, 174352), (632, 108970), (641, 107440), (680, 101278), (790, 87176), (1264, 54485), (1282, 53720), (1343, 51280), (1360, 50639), (1580, 43588), (2564, 26860), (2686, 25640), (3160, 21794), (3205, 21488), (5128, 13430), (5372, 12820), (6320, 10897), (6410, 10744), (6715, 10256)]