12000400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1616

約数の個数: 60

約数和(自身を含む): 30367600

約数和(自身を除く): 18367200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1579, 1900, 3158, 3800, 6316, 7600, 7895, 12632, 15790, 25264, 30001, 31580, 39475, 60002, 63160, 78950, 120004, 126320, 150005, 157900, 240008, 300010, 315800, 480016, 600020, 631600, 750025, 1200040, 1500050, 2400080, 3000100, 6000200, 12000400]

約数ペア:

[(1, 12000400), (2, 6000200), (4, 3000100), (5, 2400080), (8, 1500050), (10, 1200040), (16, 750025), (19, 631600), (20, 600020), (25, 480016), (38, 315800), (40, 300010), (50, 240008), (76, 157900), (80, 150005), (95, 126320), (100, 120004), (152, 78950), (190, 63160), (200, 60002), (304, 39475), (380, 31580), (400, 30001), (475, 25264), (760, 15790), (950, 12632), (1520, 7895), (1579, 7600), (1900, 6316), (3158, 3800)]