20177372495

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1\times {\mathrm{719}}^1$

素因数の和:1316

約数の個数: 64

約数和(自身を含む): 29382082560

約数和(自身を除く): 9204710065

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 491, 497, 719, 805, 1633, 2455, 2485, 3437, 3595, 5033, 8165, 11293, 11431, 16537, 17185, 25165, 34861, 51049, 56465, 57155, 79051, 82685, 115759, 174305, 244027, 255245, 353029, 357343, 395255, 578795, 801803, 1174127, 1220135, 1765145, 1786715, 2471203, 4009015, 5612621, 5870635, 8119667, 8218889, 12356015, 25065059, 28063105, 40598335, 41094445, 56837669, 125325295, 175455413, 284188345, 576496357, 877277065, 2882481785, 4035474499, 20177372495]

約数ペア:

[(1, 20177372495), (5, 4035474499), (7, 2882481785), (23, 877277065), (35, 576496357), (71, 284188345), (115, 175455413), (161, 125325295), (355, 56837669), (491, 41094445), (497, 40598335), (719, 28063105), (805, 25065059), (1633, 12356015), (2455, 8218889), (2485, 8119667), (3437, 5870635), (3595, 5612621), (5033, 4009015), (8165, 2471203), (11293, 1786715), (11431, 1765145), (16537, 1220135), (17185, 1174127), (25165, 801803), (34861, 578795), (51049, 395255), (56465, 357343), (57155, 353029), (79051, 255245), (82685, 244027), (115759, 174305)]