28806180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36931}}^1$

素因数の和:36956

約数の個数: 48

約数和(自身を含む): 86864064

約数和(自身を除く): 58057884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36931, 73862, 110793, 147724, 184655, 221586, 369310, 443172, 480103, 553965, 738620, 960206, 1107930, 1440309, 1920412, 2215860, 2400515, 2880618, 4801030, 5761236, 7201545, 9602060, 14403090, 28806180]

約数ペア:

[(1, 28806180), (2, 14403090), (3, 9602060), (4, 7201545), (5, 5761236), (6, 4801030), (10, 2880618), (12, 2400515), (13, 2215860), (15, 1920412), (20, 1440309), (26, 1107930), (30, 960206), (39, 738620), (52, 553965), (60, 480103), (65, 443172), (78, 369310), (130, 221586), (156, 184655), (195, 147724), (260, 110793), (390, 73862), (780, 36931)]