201720675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{661}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 360858848

約数和(自身を除く): 159138173

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 313, 325, 661, 939, 975, 1565, 1983, 3305, 4069, 4695, 7825, 8593, 9915, 12207, 16525, 20345, 23475, 25779, 42965, 49575, 61035, 101725, 128895, 206893, 214825, 305175, 620679, 644475, 1034465, 2689609, 3103395, 5172325, 8068827, 13448045, 15516975, 40344135, 67240225, 201720675]

約数ペア:

[(1, 201720675), (3, 67240225), (5, 40344135), (13, 15516975), (15, 13448045), (25, 8068827), (39, 5172325), (65, 3103395), (75, 2689609), (195, 1034465), (313, 644475), (325, 620679), (661, 305175), (939, 214825), (975, 206893), (1565, 128895), (1983, 101725), (3305, 61035), (4069, 49575), (4695, 42965), (7825, 25779), (8593, 23475), (9915, 20345), (12207, 16525)]