13321220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 30796416

約数和(自身を除く): 17475196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 401, 604, 755, 802, 1510, 1604, 1661, 2005, 3020, 3322, 4010, 4411, 6644, 8020, 8305, 8822, 16610, 17644, 22055, 33220, 44110, 60551, 88220, 121102, 242204, 302755, 605510, 666061, 1211020, 1332122, 2664244, 3330305, 6660610, 13321220]

約数ペア:

[(1, 13321220), (2, 6660610), (4, 3330305), (5, 2664244), (10, 1332122), (11, 1211020), (20, 666061), (22, 605510), (44, 302755), (55, 242204), (110, 121102), (151, 88220), (220, 60551), (302, 44110), (401, 33220), (604, 22055), (755, 17644), (802, 16610), (1510, 8822), (1604, 8305), (1661, 8020), (2005, 6644), (3020, 4411), (3322, 4010)]