205065420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1399}}^1$

素因数の和:1767

約数の個数: 96

約数和(自身を含む): 658560000

約数和(自身を除く): 453494580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 349, 420, 698, 1047, 1396, 1399, 1745, 2094, 2443, 2798, 3490, 4188, 4197, 4886, 5235, 5596, 6980, 6995, 7329, 8394, 9772, 9793, 10470, 12215, 13990, 14658, 16788, 19586, 20940, 20985, 24430, 27980, 29316, 29379, 36645, 39172, 41970, 48860, 48965, 58758, 73290, 83940, 97930, 117516, 146580, 146895, 195860, 293790, 488251, 587580, 976502, 1464753, 1953004, 2441255, 2929506, 3417757, 4882510, 5859012, 6835514, 7323765, 9765020, 10253271, 13671028, 14647530, 17088785, 20506542, 29295060, 34177570, 41013084, 51266355, 68355140, 102532710, 205065420]

約数ペア:

[(1, 205065420), (2, 102532710), (3, 68355140), (4, 51266355), (5, 41013084), (6, 34177570), (7, 29295060), (10, 20506542), (12, 17088785), (14, 14647530), (15, 13671028), (20, 10253271), (21, 9765020), (28, 7323765), (30, 6835514), (35, 5859012), (42, 4882510), (60, 3417757), (70, 2929506), (84, 2441255), (105, 1953004), (140, 1464753), (210, 976502), (349, 587580), (420, 488251), (698, 293790), (1047, 195860), (1396, 146895), (1399, 146580), (1745, 117516), (2094, 97930), (2443, 83940), (2798, 73290), (3490, 58758), (4188, 48965), (4197, 48860), (4886, 41970), (5235, 39172), (5596, 36645), (6980, 29379), (6995, 29316), (7329, 27980), (8394, 24430), (9772, 20985), (9793, 20940), (10470, 19586), (12215, 16788), (13990, 14658)]