28742525

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 43878144

約数和(自身を除く): 15135619

約数列:

[1, 5, 7, 23, 25, 35, 37, 115, 161, 175, 185, 193, 259, 575, 805, 851, 925, 965, 1295, 1351, 4025, 4255, 4439, 4825, 5957, 6475, 6755, 7141, 21275, 22195, 29785, 31073, 33775, 35705, 49987, 110975, 148925, 155365, 164243, 178525, 249935, 776825, 821215, 1149701, 1249675, 4106075, 5748505, 28742525]

約数ペア:

[(1, 28742525), (5, 5748505), (7, 4106075), (23, 1249675), (25, 1149701), (35, 821215), (37, 776825), (115, 249935), (161, 178525), (175, 164243), (185, 155365), (193, 148925), (259, 110975), (575, 49987), (805, 35705), (851, 33775), (925, 31073), (965, 29785), (1295, 22195), (1351, 21275), (4025, 7141), (4255, 6755), (4439, 6475), (4825, 5957)]