2451780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 7606872

約数和(自身を除く): 5155092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 257, 265, 318, 477, 514, 530, 636, 771, 795, 954, 1028, 1060, 1285, 1542, 1590, 1908, 2313, 2385, 2570, 3084, 3180, 3855, 4626, 4770, 5140, 7710, 9252, 9540, 11565, 13621, 15420, 23130, 27242, 40863, 46260, 54484, 68105, 81726, 122589, 136210, 163452, 204315, 245178, 272420, 408630, 490356, 612945, 817260, 1225890, 2451780]

約数ペア:

[(1, 2451780), (2, 1225890), (3, 817260), (4, 612945), (5, 490356), (6, 408630), (9, 272420), (10, 245178), (12, 204315), (15, 163452), (18, 136210), (20, 122589), (30, 81726), (36, 68105), (45, 54484), (53, 46260), (60, 40863), (90, 27242), (106, 23130), (159, 15420), (180, 13621), (212, 11565), (257, 9540), (265, 9252), (318, 7710), (477, 5140), (514, 4770), (530, 4626), (636, 3855), (771, 3180), (795, 3084), (954, 2570), (1028, 2385), (1060, 2313), (1285, 1908), (1542, 1590)]