20757240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8237}}^1$

素因数の和:8261

約数の個数: 96

約数和(自身を含む): 77107680

約数和(自身を除く): 56350440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8237, 16474, 24711, 32948, 41185, 49422, 57659, 65896, 74133, 82370, 98844, 115318, 123555, 148266, 164740, 172977, 197688, 230636, 247110, 288295, 296532, 329480, 345954, 370665, 461272, 494220, 518931, 576590, 593064, 691908, 741330, 864885, 988440, 1037862, 1153180, 1383816, 1482660, 1729770, 2075724, 2306360, 2594655, 2965320, 3459540, 4151448, 5189310, 6919080, 10378620, 20757240]

約数ペア:

[(1, 20757240), (2, 10378620), (3, 6919080), (4, 5189310), (5, 4151448), (6, 3459540), (7, 2965320), (8, 2594655), (9, 2306360), (10, 2075724), (12, 1729770), (14, 1482660), (15, 1383816), (18, 1153180), (20, 1037862), (21, 988440), (24, 864885), (28, 741330), (30, 691908), (35, 593064), (36, 576590), (40, 518931), (42, 494220), (45, 461272), (56, 370665), (60, 345954), (63, 329480), (70, 296532), (72, 288295), (84, 247110), (90, 230636), (105, 197688), (120, 172977), (126, 164740), (140, 148266), (168, 123555), (180, 115318), (210, 98844), (252, 82370), (280, 74133), (315, 65896), (360, 57659), (420, 49422), (504, 41185), (630, 32948), (840, 24711), (1260, 16474), (2520, 8237)]