20470725

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{919}}^1$

素因数の和:952

約数の個数: 60

約数和(自身を含む): 41411040

約数和(自身を除く): 20940315

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 135, 165, 225, 275, 297, 405, 495, 675, 825, 891, 919, 1485, 2025, 2475, 2757, 4455, 4595, 7425, 8271, 10109, 13785, 22275, 22975, 24813, 30327, 41355, 50545, 68925, 74439, 90981, 124065, 151635, 206775, 252725, 272943, 372195, 454905, 620325, 758175, 818829, 1364715, 1860975, 2274525, 4094145, 6823575, 20470725]

約数ペア:

[(1, 20470725), (3, 6823575), (5, 4094145), (9, 2274525), (11, 1860975), (15, 1364715), (25, 818829), (27, 758175), (33, 620325), (45, 454905), (55, 372195), (75, 272943), (81, 252725), (99, 206775), (135, 151635), (165, 124065), (225, 90981), (275, 74439), (297, 68925), (405, 50545), (495, 41355), (675, 30327), (825, 24813), (891, 22975), (919, 22275), (1485, 13785), (2025, 10109), (2475, 8271), (2757, 7425), (4455, 4595)]