1281960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{1187}}^1$

素因数の和:1207

約数の個数: 64

約数和(自身を含む): 4276800

約数和(自身を除く): 2994840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 1187, 2374, 3561, 4748, 5935, 7122, 9496, 10683, 11870, 14244, 17805, 21366, 23740, 28488, 32049, 35610, 42732, 47480, 53415, 64098, 71220, 85464, 106830, 128196, 142440, 160245, 213660, 256392, 320490, 427320, 640980, 1281960]

約数ペア:

[(1, 1281960), (2, 640980), (3, 427320), (4, 320490), (5, 256392), (6, 213660), (8, 160245), (9, 142440), (10, 128196), (12, 106830), (15, 85464), (18, 71220), (20, 64098), (24, 53415), (27, 47480), (30, 42732), (36, 35610), (40, 32049), (45, 28488), (54, 23740), (60, 21366), (72, 17805), (90, 14244), (108, 11870), (120, 10683), (135, 9496), (180, 7122), (216, 5935), (270, 4748), (360, 3561), (540, 2374), (1080, 1187)]