20153178890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{9371}}^1$

素因数の和:9695

約数の個数: 64

約数和(自身を含む): 39790662912

約数和(自身を除く): 19637484022

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 233, 355, 466, 710, 923, 1165, 1846, 2330, 3029, 4615, 6058, 9230, 9371, 15145, 16543, 18742, 30290, 33086, 46855, 82715, 93710, 121823, 165430, 215059, 243646, 430118, 609115, 665341, 1075295, 1218230, 1330682, 2150590, 2183443, 3326705, 4366886, 6653410, 8649433, 10917215, 17298866, 21834430, 28384759, 43247165, 56769518, 86494330, 141923795, 155024453, 283847590, 310048906, 775122265, 1550244530, 2015317889, 4030635778, 10076589445, 20153178890]

約数ペア:

[(1, 20153178890), (2, 10076589445), (5, 4030635778), (10, 2015317889), (13, 1550244530), (26, 775122265), (65, 310048906), (71, 283847590), (130, 155024453), (142, 141923795), (233, 86494330), (355, 56769518), (466, 43247165), (710, 28384759), (923, 21834430), (1165, 17298866), (1846, 10917215), (2330, 8649433), (3029, 6653410), (4615, 4366886), (6058, 3326705), (9230, 2183443), (9371, 2150590), (15145, 1330682), (16543, 1218230), (18742, 1075295), (30290, 665341), (33086, 609115), (46855, 430118), (82715, 243646), (93710, 215059), (121823, 165430)]