90171250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 188939520

約数和(自身を除く): 98768270

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 179, 250, 310, 325, 358, 403, 625, 650, 775, 806, 895, 1250, 1550, 1625, 1790, 2015, 2327, 3250, 3875, 4030, 4475, 4654, 5549, 7750, 8125, 8950, 10075, 11098, 11635, 16250, 19375, 20150, 22375, 23270, 27745, 38750, 44750, 50375, 55490, 58175, 72137, 100750, 111875, 116350, 138725, 144274, 223750, 251875, 277450, 290875, 360685, 503750, 581750, 693625, 721370, 1387250, 1454375, 1803425, 2908750, 3468125, 3606850, 6936250, 9017125, 18034250, 45085625, 90171250]

約数ペア:

[(1, 90171250), (2, 45085625), (5, 18034250), (10, 9017125), (13, 6936250), (25, 3606850), (26, 3468125), (31, 2908750), (50, 1803425), (62, 1454375), (65, 1387250), (125, 721370), (130, 693625), (155, 581750), (179, 503750), (250, 360685), (310, 290875), (325, 277450), (358, 251875), (403, 223750), (625, 144274), (650, 138725), (775, 116350), (806, 111875), (895, 100750), (1250, 72137), (1550, 58175), (1625, 55490), (1790, 50375), (2015, 44750), (2327, 38750), (3250, 27745), (3875, 23270), (4030, 22375), (4475, 20150), (4654, 19375), (5549, 16250), (7750, 11635), (8125, 11098), (8950, 10075)]