81582280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1039}}^1$

素因数の和:1214

約数の個数: 64

約数和(自身を含む): 199180800

約数和(自身を除く): 117598520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1039, 1208, 1510, 1963, 2078, 3020, 3926, 4156, 5195, 6040, 7852, 8312, 9815, 10390, 13507, 15704, 19630, 20780, 27014, 39260, 41560, 54028, 67535, 78520, 108056, 135070, 156889, 270140, 313778, 540280, 627556, 784445, 1255112, 1568890, 2039557, 3137780, 4079114, 6275560, 8158228, 10197785, 16316456, 20395570, 40791140, 81582280]

約数ペア:

[(1, 81582280), (2, 40791140), (4, 20395570), (5, 16316456), (8, 10197785), (10, 8158228), (13, 6275560), (20, 4079114), (26, 3137780), (40, 2039557), (52, 1568890), (65, 1255112), (104, 784445), (130, 627556), (151, 540280), (260, 313778), (302, 270140), (520, 156889), (604, 135070), (755, 108056), (1039, 78520), (1208, 67535), (1510, 54028), (1963, 41560), (2078, 39260), (3020, 27014), (3926, 20780), (4156, 19630), (5195, 15704), (6040, 13507), (7852, 10390), (8312, 9815)]