671895

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{79}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 1397760

約数和(自身を除く): 725865

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 79, 81, 105, 135, 189, 237, 243, 315, 395, 405, 553, 567, 711, 945, 1185, 1215, 1659, 1701, 2133, 2765, 2835, 3555, 4977, 6399, 8295, 8505, 10665, 14931, 19197, 24885, 31995, 44793, 74655, 95985, 134379, 223965, 671895]

約数ペア:

[(1, 671895), (3, 223965), (5, 134379), (7, 95985), (9, 74655), (15, 44793), (21, 31995), (27, 24885), (35, 19197), (45, 14931), (63, 10665), (79, 8505), (81, 8295), (105, 6399), (135, 4977), (189, 3555), (237, 2835), (243, 2765), (315, 2133), (395, 1701), (405, 1659), (553, 1215), (567, 1185), (711, 945)]