19681500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13121}}^1$

素因数の和:13143

約数の個数: 48

約数和(自身を含む): 57316896

約数和(自身を除く): 37635396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500, 13121, 26242, 39363, 52484, 65605, 78726, 131210, 157452, 196815, 262420, 328025, 393630, 656050, 787260, 984075, 1312100, 1640125, 1968150, 3280250, 3936300, 4920375, 6560500, 9840750, 19681500]

約数ペア:

[(1, 19681500), (2, 9840750), (3, 6560500), (4, 4920375), (5, 3936300), (6, 3280250), (10, 1968150), (12, 1640125), (15, 1312100), (20, 984075), (25, 787260), (30, 656050), (50, 393630), (60, 328025), (75, 262420), (100, 196815), (125, 157452), (150, 131210), (250, 78726), (300, 65605), (375, 52484), (500, 39363), (750, 26242), (1500, 13121)]