253984560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1289}}^1$

素因数の和:2126

約数の個数: 80

約数和(自身を含む): 788922720

約数和(自身を除く): 534938160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 821, 1289, 1642, 2463, 2578, 3284, 3867, 4105, 4926, 5156, 6445, 6568, 7734, 8210, 9852, 10312, 12315, 12890, 13136, 15468, 16420, 19335, 19704, 20624, 24630, 25780, 30936, 32840, 38670, 39408, 49260, 51560, 61872, 65680, 77340, 98520, 103120, 154680, 197040, 309360, 1058269, 2116538, 3174807, 4233076, 5291345, 6349614, 8466152, 10582690, 12699228, 15874035, 16932304, 21165380, 25398456, 31748070, 42330760, 50796912, 63496140, 84661520, 126992280, 253984560]

約数ペア:

[(1, 253984560), (2, 126992280), (3, 84661520), (4, 63496140), (5, 50796912), (6, 42330760), (8, 31748070), (10, 25398456), (12, 21165380), (15, 16932304), (16, 15874035), (20, 12699228), (24, 10582690), (30, 8466152), (40, 6349614), (48, 5291345), (60, 4233076), (80, 3174807), (120, 2116538), (240, 1058269), (821, 309360), (1289, 197040), (1642, 154680), (2463, 103120), (2578, 98520), (3284, 77340), (3867, 65680), (4105, 61872), (4926, 51560), (5156, 49260), (6445, 39408), (6568, 38670), (7734, 32840), (8210, 30936), (9852, 25780), (10312, 24630), (12315, 20624), (12890, 19704), (13136, 19335), (15468, 16420)]