678456

素因数分解:

$2^3\times 3^5\times {\mathrm{349}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 1911000

約数和(自身を除く): 1232544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 349, 486, 648, 698, 972, 1047, 1396, 1944, 2094, 2792, 3141, 4188, 6282, 8376, 9423, 12564, 18846, 25128, 28269, 37692, 56538, 75384, 84807, 113076, 169614, 226152, 339228, 678456]

約数ペア:

[(1, 678456), (2, 339228), (3, 226152), (4, 169614), (6, 113076), (8, 84807), (9, 75384), (12, 56538), (18, 37692), (24, 28269), (27, 25128), (36, 18846), (54, 12564), (72, 9423), (81, 8376), (108, 6282), (162, 4188), (216, 3141), (243, 2792), (324, 2094), (349, 1944), (486, 1396), (648, 1047), (698, 972)]