28289385

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 26142615

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 57, 95, 123, 135, 171, 205, 269, 285, 369, 513, 615, 779, 807, 855, 1107, 1345, 1845, 2337, 2421, 2565, 3895, 4035, 5111, 5535, 7011, 7263, 11029, 11685, 12105, 15333, 21033, 25555, 33087, 35055, 36315, 45999, 55145, 76665, 99261, 105165, 137997, 165435, 209551, 229995, 297783, 496305, 628653, 689985, 1047755, 1488915, 1885959, 3143265, 5657877, 9429795, 28289385]

約数ペア:

[(1, 28289385), (3, 9429795), (5, 5657877), (9, 3143265), (15, 1885959), (19, 1488915), (27, 1047755), (41, 689985), (45, 628653), (57, 496305), (95, 297783), (123, 229995), (135, 209551), (171, 165435), (205, 137997), (269, 105165), (285, 99261), (369, 76665), (513, 55145), (615, 45999), (779, 36315), (807, 35055), (855, 33087), (1107, 25555), (1345, 21033), (1845, 15333), (2337, 12105), (2421, 11685), (2565, 11029), (3895, 7263), (4035, 7011), (5111, 5535)]