20035120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 57250800

約数和(自身を除く): 37215680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 269, 280, 304, 380, 392, 490, 532, 538, 560, 665, 760, 784, 931, 980, 1064, 1076, 1330, 1345, 1520, 1862, 1883, 1960, 2128, 2152, 2660, 2690, 3724, 3766, 3920, 4304, 4655, 5111, 5320, 5380, 7448, 7532, 9310, 9415, 10222, 10640, 10760, 13181, 14896, 15064, 18620, 18830, 20444, 21520, 25555, 26362, 30128, 35777, 37240, 37660, 40888, 51110, 52724, 65905, 71554, 74480, 75320, 81776, 102220, 105448, 131810, 143108, 150640, 178885, 204440, 210896, 250439, 263620, 286216, 357770, 408880, 500878, 527240, 572432, 715540, 1001756, 1054480, 1252195, 1431080, 2003512, 2504390, 2862160, 4007024, 5008780, 10017560, 20035120]

約数ペア:

[(1, 20035120), (2, 10017560), (4, 5008780), (5, 4007024), (7, 2862160), (8, 2504390), (10, 2003512), (14, 1431080), (16, 1252195), (19, 1054480), (20, 1001756), (28, 715540), (35, 572432), (38, 527240), (40, 500878), (49, 408880), (56, 357770), (70, 286216), (76, 263620), (80, 250439), (95, 210896), (98, 204440), (112, 178885), (133, 150640), (140, 143108), (152, 131810), (190, 105448), (196, 102220), (245, 81776), (266, 75320), (269, 74480), (280, 71554), (304, 65905), (380, 52724), (392, 51110), (490, 40888), (532, 37660), (538, 37240), (560, 35777), (665, 30128), (760, 26362), (784, 25555), (931, 21520), (980, 20444), (1064, 18830), (1076, 18620), (1330, 15064), (1345, 14896), (1520, 13181), (1862, 10760), (1883, 10640), (1960, 10222), (2128, 9415), (2152, 9310), (2660, 7532), (2690, 7448), (3724, 5380), (3766, 5320), (3920, 5111), (4304, 4655)]