7218640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 19748736

約数和(自身を除く): 12530096

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 631, 715, 880, 1040, 1144, 1262, 1430, 2288, 2524, 2860, 3155, 5048, 5720, 6310, 6941, 8203, 10096, 11440, 12620, 13882, 16406, 25240, 27764, 32812, 34705, 41015, 50480, 55528, 65624, 69410, 82030, 90233, 111056, 131248, 138820, 164060, 180466, 277640, 328120, 360932, 451165, 555280, 656240, 721864, 902330, 1443728, 1804660, 3609320, 7218640]

約数ペア:

[(1, 7218640), (2, 3609320), (4, 1804660), (5, 1443728), (8, 902330), (10, 721864), (11, 656240), (13, 555280), (16, 451165), (20, 360932), (22, 328120), (26, 277640), (40, 180466), (44, 164060), (52, 138820), (55, 131248), (65, 111056), (80, 90233), (88, 82030), (104, 69410), (110, 65624), (130, 55528), (143, 50480), (176, 41015), (208, 34705), (220, 32812), (260, 27764), (286, 25240), (440, 16406), (520, 13882), (572, 12620), (631, 11440), (715, 10096), (880, 8203), (1040, 6941), (1144, 6310), (1262, 5720), (1430, 5048), (2288, 3155), (2524, 2860)]