18487420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 47190528

約数和(自身を除く): 28703108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 43, 70, 74, 83, 86, 140, 148, 166, 172, 185, 215, 259, 301, 332, 370, 415, 430, 518, 581, 602, 740, 830, 860, 1036, 1162, 1204, 1295, 1505, 1591, 1660, 2324, 2590, 2905, 3010, 3071, 3182, 3569, 5180, 5810, 6020, 6142, 6364, 7138, 7955, 11137, 11620, 12284, 14276, 15355, 15910, 17845, 21497, 22274, 24983, 30710, 31820, 35690, 42994, 44548, 49966, 55685, 61420, 71380, 85988, 99932, 107485, 111370, 124915, 132053, 214970, 222740, 249830, 264106, 429940, 499660, 528212, 660265, 924371, 1320530, 1848742, 2641060, 3697484, 4621855, 9243710, 18487420]

約数ペア:

[(1, 18487420), (2, 9243710), (4, 4621855), (5, 3697484), (7, 2641060), (10, 1848742), (14, 1320530), (20, 924371), (28, 660265), (35, 528212), (37, 499660), (43, 429940), (70, 264106), (74, 249830), (83, 222740), (86, 214970), (140, 132053), (148, 124915), (166, 111370), (172, 107485), (185, 99932), (215, 85988), (259, 71380), (301, 61420), (332, 55685), (370, 49966), (415, 44548), (430, 42994), (518, 35690), (581, 31820), (602, 30710), (740, 24983), (830, 22274), (860, 21497), (1036, 17845), (1162, 15910), (1204, 15355), (1295, 14276), (1505, 12284), (1591, 11620), (1660, 11137), (2324, 7955), (2590, 7138), (2905, 6364), (3010, 6142), (3071, 6020), (3182, 5810), (3569, 5180)]