2015977900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{1283}}^1$

素因数の和:2143

約数の個数: 72

約数和(自身を含む): 4614079680

約数和(自身を除く): 2598101780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 827, 950, 1283, 1654, 1900, 2566, 3308, 4135, 5132, 6415, 8270, 12830, 15713, 16540, 20675, 24377, 25660, 31426, 32075, 41350, 48754, 62852, 64150, 78565, 82700, 97508, 121885, 128300, 157130, 243770, 314260, 392825, 487540, 609425, 785650, 1061041, 1218850, 1571300, 2122082, 2437700, 4244164, 5305205, 10610410, 20159779, 21220820, 26526025, 40319558, 53052050, 80639116, 100798895, 106104100, 201597790, 403195580, 503994475, 1007988950, 2015977900]

約数ペア:

[(1, 2015977900), (2, 1007988950), (4, 503994475), (5, 403195580), (10, 201597790), (19, 106104100), (20, 100798895), (25, 80639116), (38, 53052050), (50, 40319558), (76, 26526025), (95, 21220820), (100, 20159779), (190, 10610410), (380, 5305205), (475, 4244164), (827, 2437700), (950, 2122082), (1283, 1571300), (1654, 1218850), (1900, 1061041), (2566, 785650), (3308, 609425), (4135, 487540), (5132, 392825), (6415, 314260), (8270, 243770), (12830, 157130), (15713, 128300), (16540, 121885), (20675, 97508), (24377, 82700), (25660, 78565), (31426, 64150), (32075, 62852), (41350, 48754)]