255789240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{304511}}^1$

素因数の和:304532

約数の個数: 64

約数和(自身を含む): 876994560

約数和(自身を除く): 621205320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 304511, 609022, 913533, 1218044, 1522555, 1827066, 2131577, 2436088, 3045110, 3654132, 4263154, 4567665, 6090220, 6394731, 7308264, 8526308, 9135330, 10657885, 12180440, 12789462, 17052616, 18270660, 21315770, 25578924, 31973655, 36541320, 42631540, 51157848, 63947310, 85263080, 127894620, 255789240]

約数ペア:

[(1, 255789240), (2, 127894620), (3, 85263080), (4, 63947310), (5, 51157848), (6, 42631540), (7, 36541320), (8, 31973655), (10, 25578924), (12, 21315770), (14, 18270660), (15, 17052616), (20, 12789462), (21, 12180440), (24, 10657885), (28, 9135330), (30, 8526308), (35, 7308264), (40, 6394731), (42, 6090220), (56, 4567665), (60, 4263154), (70, 3654132), (84, 3045110), (105, 2436088), (120, 2131577), (140, 1827066), (168, 1522555), (210, 1218044), (280, 913533), (420, 609022), (840, 304511)]