81331600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:993

約数の個数: 120

約数和(自身を含む): 230763008

約数和(自身を除く): 149431408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 400, 434, 496, 560, 620, 700, 775, 868, 937, 1085, 1240, 1400, 1550, 1736, 1874, 2170, 2480, 2800, 3100, 3472, 3748, 4340, 4685, 5425, 6200, 6559, 7496, 8680, 9370, 10850, 12400, 13118, 14992, 17360, 18740, 21700, 23425, 26236, 29047, 32795, 37480, 43400, 46850, 52472, 58094, 65590, 74960, 86800, 93700, 104944, 116188, 131180, 145235, 163975, 187400, 203329, 232376, 262360, 290470, 327950, 374800, 406658, 464752, 524720, 580940, 655900, 726175, 813316, 1016645, 1161880, 1311800, 1452350, 1626632, 2033290, 2323760, 2623600, 2904700, 3253264, 4066580, 5083225, 5809400, 8133160, 10166450, 11618800, 16266320, 20332900, 40665800, 81331600]

約数ペア:

[(1, 81331600), (2, 40665800), (4, 20332900), (5, 16266320), (7, 11618800), (8, 10166450), (10, 8133160), (14, 5809400), (16, 5083225), (20, 4066580), (25, 3253264), (28, 2904700), (31, 2623600), (35, 2323760), (40, 2033290), (50, 1626632), (56, 1452350), (62, 1311800), (70, 1161880), (80, 1016645), (100, 813316), (112, 726175), (124, 655900), (140, 580940), (155, 524720), (175, 464752), (200, 406658), (217, 374800), (248, 327950), (280, 290470), (310, 262360), (350, 232376), (400, 203329), (434, 187400), (496, 163975), (560, 145235), (620, 131180), (700, 116188), (775, 104944), (868, 93700), (937, 86800), (1085, 74960), (1240, 65590), (1400, 58094), (1550, 52472), (1736, 46850), (1874, 43400), (2170, 37480), (2480, 32795), (2800, 29047), (3100, 26236), (3472, 23425), (3748, 21700), (4340, 18740), (4685, 17360), (5425, 14992), (6200, 13118), (6559, 12400), (7496, 10850), (8680, 9370)]