205840300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{827}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 474344640

約数和(自身を除く): 268504340

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 131, 190, 262, 380, 475, 524, 655, 827, 950, 1310, 1654, 1900, 2489, 2620, 3275, 3308, 4135, 4978, 6550, 8270, 9956, 12445, 13100, 15713, 16540, 20675, 24890, 31426, 41350, 49780, 62225, 62852, 78565, 82700, 108337, 124450, 157130, 216674, 248900, 314260, 392825, 433348, 541685, 785650, 1083370, 1571300, 2058403, 2166740, 2708425, 4116806, 5416850, 8233612, 10292015, 10833700, 20584030, 41168060, 51460075, 102920150, 205840300]

約数ペア:

[(1, 205840300), (2, 102920150), (4, 51460075), (5, 41168060), (10, 20584030), (19, 10833700), (20, 10292015), (25, 8233612), (38, 5416850), (50, 4116806), (76, 2708425), (95, 2166740), (100, 2058403), (131, 1571300), (190, 1083370), (262, 785650), (380, 541685), (475, 433348), (524, 392825), (655, 314260), (827, 248900), (950, 216674), (1310, 157130), (1654, 124450), (1900, 108337), (2489, 82700), (2620, 78565), (3275, 62852), (3308, 62225), (4135, 49780), (4978, 41350), (6550, 31426), (8270, 24890), (9956, 20675), (12445, 16540), (13100, 15713)]