129040400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{16979}}^1$

素因数の和:17016

約数の個数: 60

約数和(自身を含む): 326355600

約数和(自身を除く): 197315200

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, 1900, 3800, 7600, 16979, 33958, 67916, 84895, 135832, 169790, 271664, 322601, 339580, 424475, 645202, 679160, 848950, 1290404, 1358320, 1613005, 1697900, 2580808, 3226010, 3395800, 5161616, 6452020, 6791600, 8065025, 12904040, 16130050, 25808080, 32260100, 64520200, 129040400]

約数ペア:

[(1, 129040400), (2, 64520200), (4, 32260100), (5, 25808080), (8, 16130050), (10, 12904040), (16, 8065025), (19, 6791600), (20, 6452020), (25, 5161616), (38, 3395800), (40, 3226010), (50, 2580808), (76, 1697900), (80, 1613005), (95, 1358320), (100, 1290404), (152, 848950), (190, 679160), (200, 645202), (304, 424475), (380, 339580), (400, 322601), (475, 271664), (760, 169790), (950, 135832), (1520, 84895), (1900, 67916), (3800, 33958), (7600, 16979)]