20797439705

素因数分解:

$5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{487}}^1\times {\mathrm{673}}^1$

素因数の和:1223

約数の個数: 64

約数和(自身を含む): 29996774400

約数和(自身を除く): 9199334695

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 343, 487, 673, 1295, 1715, 1813, 2435, 3365, 3409, 4711, 9065, 12691, 17045, 18019, 23555, 23863, 24901, 32977, 63455, 90095, 119315, 124505, 126133, 164885, 167041, 174307, 230839, 327751, 630665, 835205, 871535, 882931, 1154195, 1220149, 1638755, 2294257, 4414655, 6100745, 6180517, 8541043, 11471285, 12126787, 16059799, 30902585, 42705215, 60633935, 80298995, 84887509, 112418593, 424437545, 562092965, 594212563, 2971062815, 4159487941, 20797439705]

約数ペア:

[(1, 20797439705), (5, 4159487941), (7, 2971062815), (35, 594212563), (37, 562092965), (49, 424437545), (185, 112418593), (245, 84887509), (259, 80298995), (343, 60633935), (487, 42705215), (673, 30902585), (1295, 16059799), (1715, 12126787), (1813, 11471285), (2435, 8541043), (3365, 6180517), (3409, 6100745), (4711, 4414655), (9065, 2294257), (12691, 1638755), (17045, 1220149), (18019, 1154195), (23555, 882931), (23863, 871535), (24901, 835205), (32977, 630665), (63455, 327751), (90095, 230839), (119315, 174307), (124505, 167041), (126133, 164885)]