80840440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6257}}^1$

素因数の和:6304

約数の個数: 64

約数和(自身を含む): 202759200

約数和(自身を除く): 121918760

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6257, 6460, 12514, 12920, 25028, 31285, 50056, 62570, 106369, 118883, 125140, 212738, 237766, 250280, 425476, 475532, 531845, 594415, 850952, 951064, 1063690, 1188830, 2021011, 2127380, 2377660, 4042022, 4254760, 4755320, 8084044, 10105055, 16168088, 20210110, 40420220, 80840440]

約数ペア:

[(1, 80840440), (2, 40420220), (4, 20210110), (5, 16168088), (8, 10105055), (10, 8084044), (17, 4755320), (19, 4254760), (20, 4042022), (34, 2377660), (38, 2127380), (40, 2021011), (68, 1188830), (76, 1063690), (85, 951064), (95, 850952), (136, 594415), (152, 531845), (170, 475532), (190, 425476), (323, 250280), (340, 237766), (380, 212738), (646, 125140), (680, 118883), (760, 106369), (1292, 62570), (1615, 50056), (2584, 31285), (3230, 25028), (6257, 12920), (6460, 12514)]