1279685960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{28387}}^1$

素因数の和:28435

約数の個数: 96

約数和(自身を含む): 3495130560

約数和(自身を除く): 2215444600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 490, 644, 805, 920, 980, 1127, 1288, 1610, 1960, 2254, 3220, 4508, 5635, 6440, 9016, 11270, 22540, 28387, 45080, 56774, 113548, 141935, 198709, 227096, 283870, 397418, 567740, 652901, 794836, 993545, 1135480, 1305802, 1390963, 1589672, 1987090, 2611604, 2781926, 3264505, 3974180, 4570307, 5223208, 5563852, 6529010, 6954815, 7948360, 9140614, 11127704, 13058020, 13909630, 18281228, 22851535, 26116040, 27819260, 31992149, 36562456, 45703070, 55638520, 63984298, 91406140, 127968596, 159960745, 182812280, 255937192, 319921490, 639842980, 1279685960]

約数ペア:

[(1, 1279685960), (2, 639842980), (4, 319921490), (5, 255937192), (7, 182812280), (8, 159960745), (10, 127968596), (14, 91406140), (20, 63984298), (23, 55638520), (28, 45703070), (35, 36562456), (40, 31992149), (46, 27819260), (49, 26116040), (56, 22851535), (70, 18281228), (92, 13909630), (98, 13058020), (115, 11127704), (140, 9140614), (161, 7948360), (184, 6954815), (196, 6529010), (230, 5563852), (245, 5223208), (280, 4570307), (322, 3974180), (392, 3264505), (460, 2781926), (490, 2611604), (644, 1987090), (805, 1589672), (920, 1390963), (980, 1305802), (1127, 1135480), (1288, 993545), (1610, 794836), (1960, 652901), (2254, 567740), (3220, 397418), (4508, 283870), (5635, 227096), (6440, 198709), (9016, 141935), (11270, 113548), (22540, 56774), (28387, 45080)]