1787240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 4959360

約数和(自身を除く): 3172120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 491, 520, 728, 910, 982, 1820, 1964, 2455, 3437, 3640, 3928, 4910, 6383, 6874, 9820, 12766, 13748, 17185, 19640, 25532, 27496, 31915, 34370, 44681, 51064, 63830, 68740, 89362, 127660, 137480, 178724, 223405, 255320, 357448, 446810, 893620, 1787240]

約数ペア:

[(1, 1787240), (2, 893620), (4, 446810), (5, 357448), (7, 255320), (8, 223405), (10, 178724), (13, 137480), (14, 127660), (20, 89362), (26, 68740), (28, 63830), (35, 51064), (40, 44681), (52, 34370), (56, 31915), (65, 27496), (70, 25532), (91, 19640), (104, 17185), (130, 13748), (140, 12766), (182, 9820), (260, 6874), (280, 6383), (364, 4910), (455, 3928), (491, 3640), (520, 3437), (728, 2455), (910, 1964), (982, 1820)]