208040900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2309}}^1$

素因数の和:2393

約数の個数: 72

約数和(自身を含む): 487234440

約数和(自身を除く): 279193540

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 100, 106, 170, 212, 265, 340, 425, 530, 850, 901, 1060, 1325, 1700, 1802, 2309, 2650, 3604, 4505, 4618, 5300, 9010, 9236, 11545, 18020, 22525, 23090, 39253, 45050, 46180, 57725, 78506, 90100, 115450, 122377, 157012, 196265, 230900, 244754, 392530, 489508, 611885, 785060, 981325, 1223770, 1962650, 2080409, 2447540, 3059425, 3925300, 4160818, 6118850, 8321636, 10402045, 12237700, 20804090, 41608180, 52010225, 104020450, 208040900]

約数ペア:

[(1, 208040900), (2, 104020450), (4, 52010225), (5, 41608180), (10, 20804090), (17, 12237700), (20, 10402045), (25, 8321636), (34, 6118850), (50, 4160818), (53, 3925300), (68, 3059425), (85, 2447540), (100, 2080409), (106, 1962650), (170, 1223770), (212, 981325), (265, 785060), (340, 611885), (425, 489508), (530, 392530), (850, 244754), (901, 230900), (1060, 196265), (1325, 157012), (1700, 122377), (1802, 115450), (2309, 90100), (2650, 78506), (3604, 57725), (4505, 46180), (4618, 45050), (5300, 39253), (9010, 23090), (9236, 22525), (11545, 18020)]