80803980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1661

約数の個数: 120

約数和(自身を含む): 261824640

約数和(自身を除く): 181020660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 1116, 1395, 1609, 1620, 1674, 1860, 2511, 2790, 3218, 3348, 4185, 4827, 5022, 5580, 6436, 8045, 8370, 9654, 10044, 12555, 14481, 16090, 16740, 19308, 24135, 25110, 28962, 32180, 43443, 48270, 49879, 50220, 57924, 72405, 86886, 96540, 99758, 130329, 144810, 149637, 173772, 199516, 217215, 249395, 260658, 289620, 299274, 434430, 448911, 498790, 521316, 598548, 651645, 748185, 868860, 897822, 997580, 1303290, 1346733, 1496370, 1795644, 2244555, 2606580, 2693466, 2992740, 4040199, 4489110, 5386932, 6733665, 8080398, 8978220, 13467330, 16160796, 20200995, 26934660, 40401990, 80803980]

約数ペア:

[(1, 80803980), (2, 40401990), (3, 26934660), (4, 20200995), (5, 16160796), (6, 13467330), (9, 8978220), (10, 8080398), (12, 6733665), (15, 5386932), (18, 4489110), (20, 4040199), (27, 2992740), (30, 2693466), (31, 2606580), (36, 2244555), (45, 1795644), (54, 1496370), (60, 1346733), (62, 1303290), (81, 997580), (90, 897822), (93, 868860), (108, 748185), (124, 651645), (135, 598548), (155, 521316), (162, 498790), (180, 448911), (186, 434430), (270, 299274), (279, 289620), (310, 260658), (324, 249395), (372, 217215), (405, 199516), (465, 173772), (540, 149637), (558, 144810), (620, 130329), (810, 99758), (837, 96540), (930, 86886), (1116, 72405), (1395, 57924), (1609, 50220), (1620, 49879), (1674, 48270), (1860, 43443), (2511, 32180), (2790, 28962), (3218, 25110), (3348, 24135), (4185, 19308), (4827, 16740), (5022, 16090), (5580, 14481), (6436, 12555), (8045, 10044), (8370, 9654)]