19156875

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:641

約数の個数: 40

約数和(自身を含む): 33851664

約数和(自身を除く): 14694789

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 601, 625, 1275, 1803, 1875, 2125, 3005, 6375, 9015, 10217, 10625, 15025, 30651, 31875, 45075, 51085, 75125, 153255, 225375, 255425, 375625, 766275, 1126875, 1277125, 3831375, 6385625, 19156875]

約数ペア:

[(1, 19156875), (3, 6385625), (5, 3831375), (15, 1277125), (17, 1126875), (25, 766275), (51, 375625), (75, 255425), (85, 225375), (125, 153255), (255, 75125), (375, 51085), (425, 45075), (601, 31875), (625, 30651), (1275, 15025), (1803, 10625), (1875, 10217), (2125, 9015), (3005, 6375)]