87850004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 173238912

約数和(自身を除く): 85388908

約数列:

[1, 2, 4, 11, 22, 44, 61, 71, 122, 142, 244, 284, 461, 671, 781, 922, 1342, 1562, 1844, 2684, 3124, 4331, 5071, 8662, 10142, 17324, 20284, 28121, 32731, 47641, 56242, 65462, 95282, 112484, 130924, 190564, 309331, 360041, 618662, 720082, 1237324, 1440164, 1996591, 3993182, 7986364, 21962501, 43925002, 87850004]

約数ペア:

[(1, 87850004), (2, 43925002), (4, 21962501), (11, 7986364), (22, 3993182), (44, 1996591), (61, 1440164), (71, 1237324), (122, 720082), (142, 618662), (244, 360041), (284, 309331), (461, 190564), (671, 130924), (781, 112484), (922, 95282), (1342, 65462), (1562, 56242), (1844, 47641), (2684, 32731), (3124, 28121), (4331, 20284), (5071, 17324), (8662, 10142)]