2783560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 6940080

約数和(自身を除く): 4156520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 101, 104, 106, 130, 202, 212, 260, 265, 404, 424, 505, 520, 530, 689, 808, 1010, 1060, 1313, 1378, 2020, 2120, 2626, 2756, 3445, 4040, 5252, 5353, 5512, 6565, 6890, 10504, 10706, 13130, 13780, 21412, 26260, 26765, 27560, 42824, 52520, 53530, 69589, 107060, 139178, 214120, 278356, 347945, 556712, 695890, 1391780, 2783560]

約数ペア:

[(1, 2783560), (2, 1391780), (4, 695890), (5, 556712), (8, 347945), (10, 278356), (13, 214120), (20, 139178), (26, 107060), (40, 69589), (52, 53530), (53, 52520), (65, 42824), (101, 27560), (104, 26765), (106, 26260), (130, 21412), (202, 13780), (212, 13130), (260, 10706), (265, 10504), (404, 6890), (424, 6565), (505, 5512), (520, 5353), (530, 5252), (689, 4040), (808, 3445), (1010, 2756), (1060, 2626), (1313, 2120), (1378, 2020)]