20996870500

素因数分解:

$2^2\times 5^3\times {\mathrm{2699}}^1\times {\mathrm{15559}}^1$

素因数の和:18277

約数の個数: 48

約数和(自身を含む): 45877104000

約数和(自身を除く): 24880233500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 2699, 5398, 10796, 13495, 15559, 26990, 31118, 53980, 62236, 67475, 77795, 134950, 155590, 269900, 311180, 337375, 388975, 674750, 777950, 1349500, 1555900, 1944875, 3889750, 7779500, 41993741, 83987482, 167974964, 209968705, 419937410, 839874820, 1049843525, 2099687050, 4199374100, 5249217625, 10498435250, 20996870500]

約数ペア:

[(1, 20996870500), (2, 10498435250), (4, 5249217625), (5, 4199374100), (10, 2099687050), (20, 1049843525), (25, 839874820), (50, 419937410), (100, 209968705), (125, 167974964), (250, 83987482), (500, 41993741), (2699, 7779500), (5398, 3889750), (10796, 1944875), (13495, 1555900), (15559, 1349500), (26990, 777950), (31118, 674750), (53980, 388975), (62236, 337375), (67475, 311180), (77795, 269900), (134950, 155590)]