254380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 645120

約数和(自身を除く): 390740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 79, 92, 115, 140, 158, 161, 230, 316, 322, 395, 460, 553, 644, 790, 805, 1106, 1580, 1610, 1817, 2212, 2765, 3220, 3634, 5530, 7268, 9085, 11060, 12719, 18170, 25438, 36340, 50876, 63595, 127190, 254380]

約数ペア:

[(1, 254380), (2, 127190), (4, 63595), (5, 50876), (7, 36340), (10, 25438), (14, 18170), (20, 12719), (23, 11060), (28, 9085), (35, 7268), (46, 5530), (70, 3634), (79, 3220), (92, 2765), (115, 2212), (140, 1817), (158, 1610), (161, 1580), (230, 1106), (316, 805), (322, 790), (395, 644), (460, 553)]