28399605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 52176960

約数和(自身を除く): 23777355

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 169, 195, 221, 255, 507, 659, 663, 845, 1105, 1977, 2535, 2873, 3295, 3315, 8567, 8619, 9885, 11203, 14365, 25701, 33609, 42835, 43095, 56015, 111371, 128505, 145639, 168045, 334113, 436917, 556855, 728195, 1670565, 1893307, 2184585, 5679921, 9466535, 28399605]

約数ペア:

[(1, 28399605), (3, 9466535), (5, 5679921), (13, 2184585), (15, 1893307), (17, 1670565), (39, 728195), (51, 556855), (65, 436917), (85, 334113), (169, 168045), (195, 145639), (221, 128505), (255, 111371), (507, 56015), (659, 43095), (663, 42835), (845, 33609), (1105, 25701), (1977, 14365), (2535, 11203), (2873, 9885), (3295, 8619), (3315, 8567)]