18348940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 40678848

約数和(自身を除く): 22329908

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 113, 115, 226, 230, 353, 452, 460, 565, 706, 1130, 1412, 1765, 2260, 2599, 3530, 5198, 7060, 8119, 10396, 12995, 16238, 25990, 32476, 39889, 40595, 51980, 79778, 81190, 159556, 162380, 199445, 398890, 797780, 917447, 1834894, 3669788, 4587235, 9174470, 18348940]

約数ペア:

[(1, 18348940), (2, 9174470), (4, 4587235), (5, 3669788), (10, 1834894), (20, 917447), (23, 797780), (46, 398890), (92, 199445), (113, 162380), (115, 159556), (226, 81190), (230, 79778), (353, 51980), (452, 40595), (460, 39889), (565, 32476), (706, 25990), (1130, 16238), (1412, 12995), (1765, 10396), (2260, 8119), (2599, 7060), (3530, 5198)]