19175050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 18322550

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 89, 139, 155, 178, 278, 310, 445, 695, 775, 890, 1390, 1550, 2225, 2759, 3475, 4309, 4450, 5518, 6950, 8618, 12371, 13795, 21545, 24742, 27590, 43090, 61855, 68975, 107725, 123710, 137950, 215450, 309275, 383501, 618550, 767002, 1917505, 3835010, 9587525, 19175050]

約数ペア:

[(1, 19175050), (2, 9587525), (5, 3835010), (10, 1917505), (25, 767002), (31, 618550), (50, 383501), (62, 309275), (89, 215450), (139, 137950), (155, 123710), (178, 107725), (278, 68975), (310, 61855), (445, 43090), (695, 27590), (775, 24742), (890, 21545), (1390, 13795), (1550, 12371), (2225, 8618), (2759, 6950), (3475, 5518), (4309, 4450)]