16620375

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 30191616

約数和(自身を除く): 13571241

約数列:

[1, 3, 5, 15, 23, 25, 41, 47, 69, 75, 115, 123, 125, 141, 205, 235, 345, 375, 575, 615, 705, 943, 1025, 1081, 1175, 1725, 1927, 2829, 2875, 3075, 3243, 3525, 4715, 5125, 5405, 5781, 5875, 8625, 9635, 14145, 15375, 16215, 17625, 23575, 27025, 28905, 44321, 48175, 70725, 81075, 117875, 132963, 135125, 144525, 221605, 240875, 353625, 405375, 664815, 722625, 1108025, 3324075, 5540125, 16620375]

約数ペア:

[(1, 16620375), (3, 5540125), (5, 3324075), (15, 1108025), (23, 722625), (25, 664815), (41, 405375), (47, 353625), (69, 240875), (75, 221605), (115, 144525), (123, 135125), (125, 132963), (141, 117875), (205, 81075), (235, 70725), (345, 48175), (375, 44321), (575, 28905), (615, 27025), (705, 23575), (943, 17625), (1025, 16215), (1081, 15375), (1175, 14145), (1725, 9635), (1927, 8625), (2829, 5875), (2875, 5781), (3075, 5405), (3243, 5125), (3525, 4715)]