19208530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 40144896

約数和(自身を除く): 20936366

約数列:

[1, 2, 5, 10, 11, 22, 31, 43, 55, 62, 86, 110, 131, 155, 215, 262, 310, 341, 430, 473, 655, 682, 946, 1310, 1333, 1441, 1705, 2365, 2666, 2882, 3410, 4061, 4730, 5633, 6665, 7205, 8122, 11266, 13330, 14410, 14663, 20305, 28165, 29326, 40610, 44671, 56330, 61963, 73315, 89342, 123926, 146630, 174623, 223355, 309815, 349246, 446710, 619630, 873115, 1746230, 1920853, 3841706, 9604265, 19208530]

約数ペア:

[(1, 19208530), (2, 9604265), (5, 3841706), (10, 1920853), (11, 1746230), (22, 873115), (31, 619630), (43, 446710), (55, 349246), (62, 309815), (86, 223355), (110, 174623), (131, 146630), (155, 123926), (215, 89342), (262, 73315), (310, 61963), (341, 56330), (430, 44671), (473, 40610), (655, 29326), (682, 28165), (946, 20305), (1310, 14663), (1333, 14410), (1441, 13330), (1705, 11266), (2365, 8122), (2666, 7205), (2882, 6665), (3410, 5633), (4061, 4730)]