81877484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 159296256

約数和(自身を除く): 77418772

約数列:

[1, 2, 4, 13, 26, 52, 67, 71, 134, 142, 268, 284, 331, 662, 871, 923, 1324, 1742, 1846, 3484, 3692, 4303, 4757, 8606, 9514, 17212, 19028, 22177, 23501, 44354, 47002, 61841, 88708, 94004, 123682, 247364, 288301, 305513, 576602, 611026, 1153204, 1222052, 1574567, 3149134, 6298268, 20469371, 40938742, 81877484]

約数ペア:

[(1, 81877484), (2, 40938742), (4, 20469371), (13, 6298268), (26, 3149134), (52, 1574567), (67, 1222052), (71, 1153204), (134, 611026), (142, 576602), (268, 305513), (284, 288301), (331, 247364), (662, 123682), (871, 94004), (923, 88708), (1324, 61841), (1742, 47002), (1846, 44354), (3484, 23501), (3692, 22177), (4303, 19028), (4757, 17212), (8606, 9514)]