631380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 1874880

約数和(自身を除く): 1243500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 619, 1020, 1238, 1857, 2476, 3095, 3714, 6190, 7428, 9285, 10523, 12380, 18570, 21046, 31569, 37140, 42092, 52615, 63138, 105230, 126276, 157845, 210460, 315690, 631380]

約数ペア:

[(1, 631380), (2, 315690), (3, 210460), (4, 157845), (5, 126276), (6, 105230), (10, 63138), (12, 52615), (15, 42092), (17, 37140), (20, 31569), (30, 21046), (34, 18570), (51, 12380), (60, 10523), (68, 9285), (85, 7428), (102, 6190), (170, 3714), (204, 3095), (255, 2476), (340, 1857), (510, 1238), (619, 1020)]