127891520

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5059}}^1$

素因数の和:5155

約数の個数: 56

約数和(自身を含む): 308457600

約数和(自身を除く): 180566080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 5059, 6320, 10118, 12640, 20236, 25280, 25295, 40472, 50590, 80944, 101180, 161888, 202360, 323776, 399661, 404720, 799322, 809440, 1598644, 1618880, 1998305, 3197288, 3996610, 6394576, 7993220, 12789152, 15986440, 25578304, 31972880, 63945760, 127891520]

約数ペア:

[(1, 127891520), (2, 63945760), (4, 31972880), (5, 25578304), (8, 15986440), (10, 12789152), (16, 7993220), (20, 6394576), (32, 3996610), (40, 3197288), (64, 1998305), (79, 1618880), (80, 1598644), (158, 809440), (160, 799322), (316, 404720), (320, 399661), (395, 323776), (632, 202360), (790, 161888), (1264, 101180), (1580, 80944), (2528, 50590), (3160, 40472), (5056, 25295), (5059, 25280), (6320, 20236), (10118, 12640)]