201619980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1621}}^1$

素因数の和:2327

約数の個数: 72

約数和(自身を含む): 612843504

約数和(自身を除く): 411223524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 691, 1382, 1621, 2073, 2764, 3242, 3455, 4146, 4863, 6219, 6484, 6910, 8105, 8292, 9726, 10365, 12438, 13820, 14589, 16210, 19452, 20730, 24315, 24876, 29178, 31095, 32420, 41460, 48630, 58356, 62190, 72945, 97260, 124380, 145890, 291780, 1120111, 2240222, 3360333, 4480444, 5600555, 6720666, 10080999, 11201110, 13441332, 16801665, 20161998, 22402220, 33603330, 40323996, 50404995, 67206660, 100809990, 201619980]

約数ペア:

[(1, 201619980), (2, 100809990), (3, 67206660), (4, 50404995), (5, 40323996), (6, 33603330), (9, 22402220), (10, 20161998), (12, 16801665), (15, 13441332), (18, 11201110), (20, 10080999), (30, 6720666), (36, 5600555), (45, 4480444), (60, 3360333), (90, 2240222), (180, 1120111), (691, 291780), (1382, 145890), (1621, 124380), (2073, 97260), (2764, 72945), (3242, 62190), (3455, 58356), (4146, 48630), (4863, 41460), (6219, 32420), (6484, 31095), (6910, 29178), (8105, 24876), (8292, 24315), (9726, 20730), (10365, 19452), (12438, 16210), (13820, 14589)]