780678

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 40

約数和(自身を含む): 1800480

約数和(自身を除く): 1019802

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 79, 81, 122, 158, 162, 183, 237, 366, 474, 549, 711, 1098, 1422, 1647, 2133, 3294, 4266, 4819, 4941, 6399, 9638, 9882, 12798, 14457, 28914, 43371, 86742, 130113, 260226, 390339, 780678]

約数ペア:

[(1, 780678), (2, 390339), (3, 260226), (6, 130113), (9, 86742), (18, 43371), (27, 28914), (54, 14457), (61, 12798), (79, 9882), (81, 9638), (122, 6399), (158, 4941), (162, 4819), (183, 4266), (237, 3294), (366, 2133), (474, 1647), (549, 1422), (711, 1098)]