287535920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{73351}}^1$

素因数の和:73378

約数の個数: 60

約数和(自身を含む): 777677904

約数和(自身を除く): 490141984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 73351, 146702, 293404, 366755, 513457, 586808, 733510, 1026914, 1173616, 1467020, 2053828, 2567285, 2934040, 3594199, 4107656, 5134570, 5868080, 7188398, 8215312, 10269140, 14376796, 17970995, 20538280, 28753592, 35941990, 41076560, 57507184, 71883980, 143767960, 287535920]

約数ペア:

[(1, 287535920), (2, 143767960), (4, 71883980), (5, 57507184), (7, 41076560), (8, 35941990), (10, 28753592), (14, 20538280), (16, 17970995), (20, 14376796), (28, 10269140), (35, 8215312), (40, 7188398), (49, 5868080), (56, 5134570), (70, 4107656), (80, 3594199), (98, 2934040), (112, 2567285), (140, 2053828), (196, 1467020), (245, 1173616), (280, 1026914), (392, 733510), (490, 586808), (560, 513457), (784, 366755), (980, 293404), (1960, 146702), (3920, 73351)]