19656250

素因数分解:

$2^1\times 5^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:86

約数の個数: 56

約数和(自身を含む): 40077612

約数和(自身を除く): 20421362

約数列:

[1, 2, 5, 10, 17, 25, 34, 37, 50, 74, 85, 125, 170, 185, 250, 370, 425, 625, 629, 850, 925, 1250, 1258, 1850, 2125, 3125, 3145, 4250, 4625, 6250, 6290, 9250, 10625, 15625, 15725, 21250, 23125, 31250, 31450, 46250, 53125, 78625, 106250, 115625, 157250, 231250, 265625, 393125, 531250, 578125, 786250, 1156250, 1965625, 3931250, 9828125, 19656250]

約数ペア:

[(1, 19656250), (2, 9828125), (5, 3931250), (10, 1965625), (17, 1156250), (25, 786250), (34, 578125), (37, 531250), (50, 393125), (74, 265625), (85, 231250), (125, 157250), (170, 115625), (185, 106250), (250, 78625), (370, 53125), (425, 46250), (625, 31450), (629, 31250), (850, 23125), (925, 21250), (1250, 15725), (1258, 15625), (1850, 10625), (2125, 9250), (3125, 6290), (3145, 6250), (4250, 4625)]