321026580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{254783}}^1$

素因数の和:254805

約数の個数: 72

約数和(自身を含む): 1112896512

約数和(自身を除く): 791869932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 254783, 509566, 764349, 1019132, 1273915, 1528698, 1783481, 2293047, 2547830, 3057396, 3566962, 3821745, 4586094, 5095660, 5350443, 7133924, 7643490, 8917405, 9172188, 10700886, 11465235, 15286980, 16051329, 17834810, 21401772, 22930470, 26752215, 32102658, 35669620, 45860940, 53504430, 64205316, 80256645, 107008860, 160513290, 321026580]

約数ペア:

[(1, 321026580), (2, 160513290), (3, 107008860), (4, 80256645), (5, 64205316), (6, 53504430), (7, 45860940), (9, 35669620), (10, 32102658), (12, 26752215), (14, 22930470), (15, 21401772), (18, 17834810), (20, 16051329), (21, 15286980), (28, 11465235), (30, 10700886), (35, 9172188), (36, 8917405), (42, 7643490), (45, 7133924), (60, 5350443), (63, 5095660), (70, 4586094), (84, 3821745), (90, 3566962), (105, 3057396), (126, 2547830), (140, 2293047), (180, 1783481), (210, 1528698), (252, 1273915), (315, 1019132), (420, 764349), (630, 509566), (1260, 254783)]