28379780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9923}}^1$

素因数の和:9956

約数の個数: 48

約数和(自身を含む): 70023744

約数和(自身を除く): 41643964

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 9923, 19846, 39692, 49615, 99230, 109153, 128999, 198460, 218306, 257998, 436612, 515996, 545765, 644995, 1091530, 1289990, 1418989, 2183060, 2579980, 2837978, 5675956, 7094945, 14189890, 28379780]

約数ペア:

[(1, 28379780), (2, 14189890), (4, 7094945), (5, 5675956), (10, 2837978), (11, 2579980), (13, 2183060), (20, 1418989), (22, 1289990), (26, 1091530), (44, 644995), (52, 545765), (55, 515996), (65, 436612), (110, 257998), (130, 218306), (143, 198460), (220, 128999), (260, 109153), (286, 99230), (572, 49615), (715, 39692), (1430, 19846), (2860, 9923)]