28512540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 192

約数和(自身を含む): 106982400

約数和(自身を除く): 78469860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 397, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 794, 798, 855, 945, 1026, 1140, 1191, 1197, 1260, 1330, 1588, 1596, 1710, 1890, 1985, 1995, 2052, 2382, 2394, 2565, 2660, 2779, 3420, 3573, 3591, 3780, 3970, 3990, 4764, 4788, 5130, 5558, 5955, 5985, 7146, 7182, 7543, 7940, 7980, 8337, 10260, 10719, 11116, 11910, 11970, 13895, 14292, 14364, 15086, 16674, 17865, 17955, 21438, 22629, 23820, 23940, 25011, 27790, 30172, 33348, 35730, 35910, 37715, 41685, 42876, 45258, 50022, 52801, 53595, 55580, 67887, 71460, 71820, 75033, 75430, 83370, 90516, 100044, 105602, 107190, 113145, 125055, 135774, 150066, 150860, 158403, 166740, 203661, 211204, 214380, 226290, 250110, 264005, 271548, 300132, 316806, 339435, 375165, 407322, 452580, 475209, 500220, 528010, 633612, 678870, 750330, 792015, 814644, 950418, 1018305, 1056020, 1357740, 1425627, 1500660, 1584030, 1900836, 2036610, 2376045, 2851254, 3168060, 4073220, 4752090, 5702508, 7128135, 9504180, 14256270, 28512540]

約数ペア:

[(1, 28512540), (2, 14256270), (3, 9504180), (4, 7128135), (5, 5702508), (6, 4752090), (7, 4073220), (9, 3168060), (10, 2851254), (12, 2376045), (14, 2036610), (15, 1900836), (18, 1584030), (19, 1500660), (20, 1425627), (21, 1357740), (27, 1056020), (28, 1018305), (30, 950418), (35, 814644), (36, 792015), (38, 750330), (42, 678870), (45, 633612), (54, 528010), (57, 500220), (60, 475209), (63, 452580), (70, 407322), (76, 375165), (84, 339435), (90, 316806), (95, 300132), (105, 271548), (108, 264005), (114, 250110), (126, 226290), (133, 214380), (135, 211204), (140, 203661), (171, 166740), (180, 158403), (189, 150860), (190, 150066), (210, 135774), (228, 125055), (252, 113145), (266, 107190), (270, 105602), (285, 100044), (315, 90516), (342, 83370), (378, 75430), (380, 75033), (397, 71820), (399, 71460), (420, 67887), (513, 55580), (532, 53595), (540, 52801), (570, 50022), (630, 45258), (665, 42876), (684, 41685), (756, 37715), (794, 35910), (798, 35730), (855, 33348), (945, 30172), (1026, 27790), (1140, 25011), (1191, 23940), (1197, 23820), (1260, 22629), (1330, 21438), (1588, 17955), (1596, 17865), (1710, 16674), (1890, 15086), (1985, 14364), (1995, 14292), (2052, 13895), (2382, 11970), (2394, 11910), (2565, 11116), (2660, 10719), (2779, 10260), (3420, 8337), (3573, 7980), (3591, 7940), (3780, 7543), (3970, 7182), (3990, 7146), (4764, 5985), (4788, 5955), (5130, 5558)]