28853175

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 52059168

約数和(自身を除く): 23205993

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 101, 195, 293, 303, 325, 505, 879, 975, 1313, 1465, 1515, 2525, 3809, 3939, 4395, 6565, 7325, 7575, 11427, 19045, 19695, 21975, 29593, 32825, 57135, 88779, 95225, 98475, 147965, 285675, 384709, 443895, 739825, 1154127, 1923545, 2219475, 5770635, 9617725, 28853175]

約数ペア:

[(1, 28853175), (3, 9617725), (5, 5770635), (13, 2219475), (15, 1923545), (25, 1154127), (39, 739825), (65, 443895), (75, 384709), (101, 285675), (195, 147965), (293, 98475), (303, 95225), (325, 88779), (505, 57135), (879, 32825), (975, 29593), (1313, 21975), (1465, 19695), (1515, 19045), (2525, 11427), (3809, 7575), (3939, 7325), (4395, 6565)]