859385680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{1279}}^1$

素因数の和:1556

約数の個数: 80

約数和(自身を含む): 2062725120

約数和(自身を除く): 1203339440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 227, 296, 370, 454, 592, 740, 908, 1135, 1279, 1480, 1816, 2270, 2558, 2960, 3632, 4540, 5116, 6395, 8399, 9080, 10232, 12790, 16798, 18160, 20464, 25580, 33596, 41995, 47323, 51160, 67192, 83990, 94646, 102320, 134384, 167980, 189292, 236615, 290333, 335960, 378584, 473230, 580666, 671920, 757168, 946460, 1161332, 1451665, 1892920, 2322664, 2903330, 3785840, 4645328, 5806660, 10742321, 11613320, 21484642, 23226640, 42969284, 53711605, 85938568, 107423210, 171877136, 214846420, 429692840, 859385680]

約数ペア:

[(1, 859385680), (2, 429692840), (4, 214846420), (5, 171877136), (8, 107423210), (10, 85938568), (16, 53711605), (20, 42969284), (37, 23226640), (40, 21484642), (74, 11613320), (80, 10742321), (148, 5806660), (185, 4645328), (227, 3785840), (296, 2903330), (370, 2322664), (454, 1892920), (592, 1451665), (740, 1161332), (908, 946460), (1135, 757168), (1279, 671920), (1480, 580666), (1816, 473230), (2270, 378584), (2558, 335960), (2960, 290333), (3632, 236615), (4540, 189292), (5116, 167980), (6395, 134384), (8399, 102320), (9080, 94646), (10232, 83990), (12790, 67192), (16798, 51160), (18160, 47323), (20464, 41995), (25580, 33596)]