13088720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 32736000

約数和(自身を除く): 19647280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 109, 152, 158, 190, 218, 304, 316, 380, 395, 436, 545, 632, 760, 790, 872, 1090, 1264, 1501, 1520, 1580, 1744, 2071, 2180, 3002, 3160, 4142, 4360, 6004, 6320, 7505, 8284, 8611, 8720, 10355, 12008, 15010, 16568, 17222, 20710, 24016, 30020, 33136, 34444, 41420, 43055, 60040, 68888, 82840, 86110, 120080, 137776, 163609, 165680, 172220, 327218, 344440, 654436, 688880, 818045, 1308872, 1636090, 2617744, 3272180, 6544360, 13088720]

約数ペア:

[(1, 13088720), (2, 6544360), (4, 3272180), (5, 2617744), (8, 1636090), (10, 1308872), (16, 818045), (19, 688880), (20, 654436), (38, 344440), (40, 327218), (76, 172220), (79, 165680), (80, 163609), (95, 137776), (109, 120080), (152, 86110), (158, 82840), (190, 68888), (218, 60040), (304, 43055), (316, 41420), (380, 34444), (395, 33136), (436, 30020), (545, 24016), (632, 20710), (760, 17222), (790, 16568), (872, 15010), (1090, 12008), (1264, 10355), (1501, 8720), (1520, 8611), (1580, 8284), (1744, 7505), (2071, 6320), (2180, 6004), (3002, 4360), (3160, 4142)]