278314540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1259}}^1\times {\mathrm{1579}}^1$

素因数の和:2854

約数の個数: 48

約数和(自身を含む): 668908800

約数和(自身を除く): 390594260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1259, 1579, 2518, 3158, 5036, 6295, 6316, 7895, 8813, 11053, 12590, 15790, 17626, 22106, 25180, 31580, 35252, 44065, 44212, 55265, 88130, 110530, 176260, 221060, 1987961, 3975922, 7951844, 9939805, 13915727, 19879610, 27831454, 39759220, 55662908, 69578635, 139157270, 278314540]

約数ペア:

[(1, 278314540), (2, 139157270), (4, 69578635), (5, 55662908), (7, 39759220), (10, 27831454), (14, 19879610), (20, 13915727), (28, 9939805), (35, 7951844), (70, 3975922), (140, 1987961), (1259, 221060), (1579, 176260), (2518, 110530), (3158, 88130), (5036, 55265), (6295, 44212), (6316, 44065), (7895, 35252), (8813, 31580), (11053, 25180), (12590, 22106), (15790, 17626)]