638510015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 963228672

約数和(自身を除く): 324718657

約数列:

[1, 5, 11, 13, 23, 41, 55, 65, 115, 143, 205, 253, 299, 451, 533, 715, 943, 947, 1265, 1495, 2255, 2665, 3289, 4715, 4735, 5863, 10373, 10417, 12259, 12311, 16445, 21781, 29315, 38827, 51865, 52085, 61295, 61555, 108905, 134849, 135421, 194135, 239591, 283153, 427097, 504751, 674245, 677105, 893021, 1197955, 1415765, 2135485, 2523755, 3114683, 4465105, 5552261, 9823231, 11609273, 15573415, 27761305, 49116155, 58046365, 127702003, 638510015]

約数ペア:

[(1, 638510015), (5, 127702003), (11, 58046365), (13, 49116155), (23, 27761305), (41, 15573415), (55, 11609273), (65, 9823231), (115, 5552261), (143, 4465105), (205, 3114683), (253, 2523755), (299, 2135485), (451, 1415765), (533, 1197955), (715, 893021), (943, 677105), (947, 674245), (1265, 504751), (1495, 427097), (2255, 283153), (2665, 239591), (3289, 194135), (4715, 135421), (4735, 134849), (5863, 108905), (10373, 61555), (10417, 61295), (12259, 52085), (12311, 51865), (16445, 38827), (21781, 29315)]