18578620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 42130368

約数和(自身を除く): 23551748

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1031, 1060, 1802, 2062, 3604, 4124, 4505, 5155, 9010, 10310, 17527, 18020, 20620, 35054, 54643, 70108, 87635, 109286, 175270, 218572, 273215, 350540, 546430, 928931, 1092860, 1857862, 3715724, 4644655, 9289310, 18578620]

約数ペア:

[(1, 18578620), (2, 9289310), (4, 4644655), (5, 3715724), (10, 1857862), (17, 1092860), (20, 928931), (34, 546430), (53, 350540), (68, 273215), (85, 218572), (106, 175270), (170, 109286), (212, 87635), (265, 70108), (340, 54643), (530, 35054), (901, 20620), (1031, 18020), (1060, 17527), (1802, 10310), (2062, 9010), (3604, 5155), (4124, 4505)]