27488020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4007}}^1$

素因数の和:4037

約数の個数: 48

約数和(自身を含む): 67334400

約数和(自身を除く): 39846380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4007, 6860, 8014, 16028, 20035, 28049, 40070, 56098, 80140, 112196, 140245, 196343, 280490, 392686, 560980, 785372, 981715, 1374401, 1963430, 2748802, 3926860, 5497604, 6872005, 13744010, 27488020]

約数ペア:

[(1, 27488020), (2, 13744010), (4, 6872005), (5, 5497604), (7, 3926860), (10, 2748802), (14, 1963430), (20, 1374401), (28, 981715), (35, 785372), (49, 560980), (70, 392686), (98, 280490), (140, 196343), (196, 140245), (245, 112196), (343, 80140), (490, 56098), (686, 40070), (980, 28049), (1372, 20035), (1715, 16028), (3430, 8014), (4007, 6860)]