81508356

素因数分解:

$2^2\times 3^4\times {\mathrm{197}}^1\times {\mathrm{1277}}^1$

素因数の和:1490

約数の個数: 60

約数和(自身を含む): 214328268

約数和(自身を除く): 132819912

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 197, 324, 394, 591, 788, 1182, 1277, 1773, 2364, 2554, 3546, 3831, 5108, 5319, 7092, 7662, 10638, 11493, 15324, 15957, 21276, 22986, 31914, 34479, 45972, 63828, 68958, 103437, 137916, 206874, 251569, 413748, 503138, 754707, 1006276, 1509414, 2264121, 3018828, 4528242, 6792363, 9056484, 13584726, 20377089, 27169452, 40754178, 81508356]

約数ペア:

[(1, 81508356), (2, 40754178), (3, 27169452), (4, 20377089), (6, 13584726), (9, 9056484), (12, 6792363), (18, 4528242), (27, 3018828), (36, 2264121), (54, 1509414), (81, 1006276), (108, 754707), (162, 503138), (197, 413748), (324, 251569), (394, 206874), (591, 137916), (788, 103437), (1182, 68958), (1277, 63828), (1773, 45972), (2364, 34479), (2554, 31914), (3546, 22986), (3831, 21276), (5108, 15957), (5319, 15324), (7092, 11493), (7662, 10638)]