28520220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27961}}^1$

素因数の和:27990

約数の個数: 48

約数和(自身を含む): 84557088

約数和(自身を除く): 56036868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 27961, 55922, 83883, 111844, 139805, 167766, 279610, 335532, 419415, 475337, 559220, 838830, 950674, 1426011, 1677660, 1901348, 2376685, 2852022, 4753370, 5704044, 7130055, 9506740, 14260110, 28520220]

約数ペア:

[(1, 28520220), (2, 14260110), (3, 9506740), (4, 7130055), (5, 5704044), (6, 4753370), (10, 2852022), (12, 2376685), (15, 1901348), (17, 1677660), (20, 1426011), (30, 950674), (34, 838830), (51, 559220), (60, 475337), (68, 419415), (85, 335532), (102, 279610), (170, 167766), (204, 139805), (255, 111844), (340, 83883), (510, 55922), (1020, 27961)]