1965990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 5153904

約数和(自身を除く): 3187914

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 923, 1065, 1846, 2130, 2769, 4615, 5041, 5538, 9230, 10082, 13845, 15123, 25205, 27690, 30246, 50410, 65533, 75615, 131066, 151230, 196599, 327665, 393198, 655330, 982995, 1965990]

約数ペア:

[(1, 1965990), (2, 982995), (3, 655330), (5, 393198), (6, 327665), (10, 196599), (13, 151230), (15, 131066), (26, 75615), (30, 65533), (39, 50410), (65, 30246), (71, 27690), (78, 25205), (130, 15123), (142, 13845), (195, 10082), (213, 9230), (355, 5538), (390, 5041), (426, 4615), (710, 2769), (923, 2130), (1065, 1846)]