77940261

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 142646400

約数和(自身を除く): 64706139

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 133, 149, 161, 171, 207, 361, 399, 437, 447, 483, 1043, 1083, 1197, 1311, 1341, 1449, 2527, 2831, 3059, 3129, 3249, 3427, 3933, 7581, 8303, 8493, 9177, 9387, 10281, 19817, 22743, 23989, 24909, 25479, 27531, 30843, 53789, 58121, 59451, 65113, 71967, 74727, 161367, 174363, 178353, 195339, 215901, 376523, 455791, 484101, 523089, 586017, 1129569, 1237147, 1367373, 3388707, 3711441, 4102119, 8660029, 11134323, 25980087, 77940261]

約数ペア:

[(1, 77940261), (3, 25980087), (7, 11134323), (9, 8660029), (19, 4102119), (21, 3711441), (23, 3388707), (57, 1367373), (63, 1237147), (69, 1129569), (133, 586017), (149, 523089), (161, 484101), (171, 455791), (207, 376523), (361, 215901), (399, 195339), (437, 178353), (447, 174363), (483, 161367), (1043, 74727), (1083, 71967), (1197, 65113), (1311, 59451), (1341, 58121), (1449, 53789), (2527, 30843), (2831, 27531), (3059, 25479), (3129, 24909), (3249, 23989), (3427, 22743), (3933, 19817), (7581, 10281), (8303, 9387), (8493, 9177)]