28949375

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 40

約数和(自身を含む): 44610720

約数和(自身を除く): 15661345

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 455, 509, 625, 875, 1625, 2275, 2545, 3563, 4375, 6617, 8125, 11375, 12725, 17815, 33085, 46319, 56875, 63625, 89075, 165425, 231595, 318125, 445375, 827125, 1157975, 2226875, 4135625, 5789875, 28949375]

約数ペア:

[(1, 28949375), (5, 5789875), (7, 4135625), (13, 2226875), (25, 1157975), (35, 827125), (65, 445375), (91, 318125), (125, 231595), (175, 165425), (325, 89075), (455, 63625), (509, 56875), (625, 46319), (875, 33085), (1625, 17815), (2275, 12725), (2545, 11375), (3563, 8125), (4375, 6617)]