20344648

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{659}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 20284952

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 227, 454, 659, 908, 1318, 1816, 2636, 3859, 5272, 7718, 11203, 15436, 22406, 30872, 44812, 89624, 149593, 299186, 598372, 1196744, 2543081, 5086162, 10172324, 20344648]

約数ペア:

[(1, 20344648), (2, 10172324), (4, 5086162), (8, 2543081), (17, 1196744), (34, 598372), (68, 299186), (136, 149593), (227, 89624), (454, 44812), (659, 30872), (908, 22406), (1318, 15436), (1816, 11203), (2636, 7718), (3859, 5272)]