178540180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{373}}^1$

素因数の和:665

約数の個数: 96

約数和(自身を含む): 464454144

約数和(自身を除く): 285913964

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 263, 364, 373, 455, 526, 746, 910, 1052, 1315, 1492, 1820, 1841, 1865, 2611, 2630, 3419, 3682, 3730, 4849, 5222, 5260, 6838, 7364, 7460, 9205, 9698, 10444, 13055, 13676, 17095, 18410, 19396, 23933, 24245, 26110, 33943, 34190, 36820, 47866, 48490, 52220, 67886, 68380, 95732, 96980, 98099, 119665, 135772, 169715, 196198, 239330, 339430, 392396, 478660, 490495, 678860, 686693, 980990, 1275287, 1373386, 1961980, 2550574, 2746772, 3433465, 5101148, 6376435, 6866930, 8927009, 12752870, 13733860, 17854018, 25505740, 35708036, 44635045, 89270090, 178540180]

約数ペア:

[(1, 178540180), (2, 89270090), (4, 44635045), (5, 35708036), (7, 25505740), (10, 17854018), (13, 13733860), (14, 12752870), (20, 8927009), (26, 6866930), (28, 6376435), (35, 5101148), (52, 3433465), (65, 2746772), (70, 2550574), (91, 1961980), (130, 1373386), (140, 1275287), (182, 980990), (260, 686693), (263, 678860), (364, 490495), (373, 478660), (455, 392396), (526, 339430), (746, 239330), (910, 196198), (1052, 169715), (1315, 135772), (1492, 119665), (1820, 98099), (1841, 96980), (1865, 95732), (2611, 68380), (2630, 67886), (3419, 52220), (3682, 48490), (3730, 47866), (4849, 36820), (5222, 34190), (5260, 33943), (6838, 26110), (7364, 24245), (7460, 23933), (9205, 19396), (9698, 18410), (10444, 17095), (13055, 13676)]