28414120

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 79200000

約数和(自身を除く): 50785880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 109, 133, 140, 152, 190, 196, 218, 245, 266, 280, 343, 380, 392, 436, 490, 532, 545, 665, 686, 760, 763, 872, 931, 980, 1064, 1090, 1330, 1372, 1526, 1715, 1862, 1960, 2071, 2180, 2660, 2744, 3052, 3430, 3724, 3815, 4142, 4360, 4655, 5320, 5341, 6104, 6517, 6860, 7448, 7630, 8284, 9310, 10355, 10682, 13034, 13720, 14497, 15260, 16568, 18620, 20710, 21364, 26068, 26705, 28994, 30520, 32585, 37240, 37387, 41420, 42728, 52136, 53410, 57988, 65170, 72485, 74774, 82840, 101479, 106820, 115976, 130340, 144970, 149548, 186935, 202958, 213640, 260680, 289940, 299096, 373870, 405916, 507395, 579880, 710353, 747740, 811832, 1014790, 1420706, 1495480, 2029580, 2841412, 3551765, 4059160, 5682824, 7103530, 14207060, 28414120]

約数ペア:

[(1, 28414120), (2, 14207060), (4, 7103530), (5, 5682824), (7, 4059160), (8, 3551765), (10, 2841412), (14, 2029580), (19, 1495480), (20, 1420706), (28, 1014790), (35, 811832), (38, 747740), (40, 710353), (49, 579880), (56, 507395), (70, 405916), (76, 373870), (95, 299096), (98, 289940), (109, 260680), (133, 213640), (140, 202958), (152, 186935), (190, 149548), (196, 144970), (218, 130340), (245, 115976), (266, 106820), (280, 101479), (343, 82840), (380, 74774), (392, 72485), (436, 65170), (490, 57988), (532, 53410), (545, 52136), (665, 42728), (686, 41420), (760, 37387), (763, 37240), (872, 32585), (931, 30520), (980, 28994), (1064, 26705), (1090, 26068), (1330, 21364), (1372, 20710), (1526, 18620), (1715, 16568), (1862, 15260), (1960, 14497), (2071, 13720), (2180, 13034), (2660, 10682), (2744, 10355), (3052, 9310), (3430, 8284), (3724, 7630), (3815, 7448), (4142, 6860), (4360, 6517), (4655, 6104), (5320, 5341)]